397475765328 has 40 divisors (see below), whose sum is σ = 1031296319200. Its totient is φ = 131913350784.

The previous prime is 397475765327. The next prime is 397475765329. The reversal of 397475765328 is 823567574793.

It is an interprime number because it is at equal distance from previous prime (397475765327) and next prime (397475765329).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397475765321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18069238 + ... + 18091221.

It is an arithmetic number, because the mean of its divisors is an integer number (25782407980).

Almost surely, 2^397475765328 is an apocalyptic number.

It is an amenable number.

397475765328 is an abundant number, since it is smaller than the sum of its proper divisors (633820553872).

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

397475765328 is a wasteful number, since it uses less digits than its factorization.

397475765328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36160699 (or 36160693 counting only the distinct ones).

The product of its digits is 266716800, while the sum is 66.

The spelling of 397475765328 in words is "three hundred ninety-seven billion, four hundred seventy-five million, seven hundred sixty-five thousand, three hundred twenty-eight".