396897135528960 has 1320 divisors, whose sum is σ = 1603233085967568. Its totient is φ = 93112668979200.

The previous prime is 396897135528947. The next prime is 396897135528973. The reversal of 396897135528960 is 69825531798693.

It is a happy number.

396897135528960 is a `hidden beast` number, since 3 + 9 + 6 + 89 + 7 + 1 + 3 + 5 + 528 + 9 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (396897135528947) and next prime (396897135528973).

It is a tau number, because it is divible by the number of its divisors (1320).

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 396897135528960.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4383959854 + ... + 4384050386.

Almost surely, 2^{396897135528960} is an apocalyptic number.

396897135528960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396897135528960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801616542983784).

396897135528960 is an abundant number, since it is smaller than the sum of its proper divisors (1206335950438608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396897135528960 is a wasteful number, since it uses less digits than its factorization.

396897135528960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90643 (or 90585 counting only the distinct ones).

The product of its (nonzero) digits is 5290790400, while the sum is 81.

The spelling of 396897135528960 in words is "three hundred ninety-six trillion, eight hundred ninety-seven billion, one hundred thirty-five million, five hundred twenty-eight thousand, nine hundred sixty".