97896395520 has 1296 divisors, whose sum is σ = 434267258880. Its totient is φ = 19926466560.

The previous prime is 97896395501. The next prime is 97896395537. The reversal of 97896395520 is 2559369879.

97896395520 is a `hidden beast` number, since 9 + 78 + 9 + 6 + 3 + 9 + 552 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 770837697 + ... + 770837823.

Almost surely, 2^97896395520 is an apocalyptic number.

97896395520 is a gapful number since it is divisible by the number (90) 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 97896395520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217133629440).

97896395520 is an abundant number, since it is smaller than the sum of its proper divisors (336370863360).

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

97896395520 is a wasteful number, since it uses less digits than its factorization.

97896395520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 63.

The spelling of 97896395520 in words is "ninety-seven billion, eight hundred ninety-six million, three hundred ninety-five thousand, five hundred twenty".