397319213760 has 448 divisors, whose sum is σ = 1461260943360. Its totient is φ = 89591132160.

The previous prime is 397319213719. The next prime is 397319213783. The reversal of 397319213760 is 67312913793.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (448).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194858821 + ... + 194860859.

Almost surely, 2^397319213760 is an apocalyptic number.

397319213760 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 397319213760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730630471680).

397319213760 is an abundant number, since it is smaller than the sum of its proper divisors (1063941729600).

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

397319213760 is a wasteful number, since it uses less digits than its factorization.

397319213760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444 (or 2434 counting only the distinct ones).

The product of its (nonzero) digits is 1285956, while the sum is 51.

The spelling of 397319213760 in words is "three hundred ninety-seven billion, three hundred nineteen million, two hundred thirteen thousand, seven hundred sixty".