397764707472 has 120 divisors (see below), whose sum is σ = 1224424557408. Its totient is φ = 120534701760.

The previous prime is 397764707453. The next prime is 397764707521. The reversal of 397764707472 is 274707467793.

397764707472 is a `hidden beast` number, since 3 + 97 + 7 + 6 + 4 + 70 + 7 + 472 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 845998 + ... + 1229325.

Almost surely, 2^397764707472 is an apocalyptic number.

It is an amenable number.

397764707472 is an abundant number, since it is smaller than the sum of its proper divisors (826659849936).

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

397764707472 is a wasteful number, since it uses less digits than its factorization.

397764707472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075370 (or 2075339 counting only the distinct ones).

The product of its (nonzero) digits is 87127488, while the sum is 63.

The spelling of 397764707472 in words is "three hundred ninety-seven billion, seven hundred sixty-four million, seven hundred seven thousand, four hundred seventy-two".