397207782504 has 192 divisors, whose sum is σ = 1202591994240. Its totient is φ = 122099685120.

The previous prime is 397207782481. The next prime is 397207782557. The reversal of 397207782504 is 405287702793.

397207782504 is a `hidden beast` number, since 39 + 7 + 20 + 7 + 7 + 82 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28221789 + ... + 28235859.

It is an arithmetic number, because the mean of its divisors is an integer number (6263499970).

Almost surely, 2^397207782504 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 397207782504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601295997120).

397207782504 is an abundant number, since it is smaller than the sum of its proper divisors (805384211736).

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

397207782504 is a wasteful number, since it uses less digits than its factorization.

397207782504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15222 (or 15206 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

It can be divided in two parts, 397207 and 782504, that added together give a palindrome (1179711).

The spelling of 397207782504 in words is "three hundred ninety-seven billion, two hundred seven million, seven hundred eighty-two thousand, five hundred four".