397562138048 has 56 divisors (see below), whose sum is σ = 804570958800. Its totient is φ = 194842818560.

The previous prime is 397562138021. The next prime is 397562138053. The reversal of 397562138048 is 840831265793.

It is a junction number, because it is equal to n+sod(n) for n = 397562137984 and 397562138002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3502343 + ... + 3614073.

It is an arithmetic number, because the mean of its divisors is an integer number (14367338550).

It is a 1-persistent number, because it is pandigital, but 2⋅397562138048 = 795124276096 is not.

Almost surely, 2^397562138048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397562138048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402285479400).

397562138048 is an abundant number, since it is smaller than the sum of its proper divisors (407008820752).

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

397562138048 is a wasteful number, since it uses less digits than its factorization.

397562138048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112845 (or 112835 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 397562138048 in words is "three hundred ninety-seven billion, five hundred sixty-two million, one hundred thirty-eight thousand, forty-eight".