397577513244816 has 60 divisors (see below), whose sum is σ = 1138540772765968. Its totient is φ = 129443841519552.

The previous prime is 397577513244797. The next prime is 397577513244827. The reversal of 397577513244816 is 618442315775793.

397577513244816 is a `hidden beast` number, since 3 + 9 + 7 + 5 + 7 + 7 + 5 + 132 + 4 + 481 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32104121170 + ... + 32104133553.

Almost surely, 2^{397577513244816} is an apocalyptic number.

397577513244816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

397577513244816 is an abundant number, since it is smaller than the sum of its proper divisors (740963259521152).

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

397577513244816 is a wasteful number, since it uses less digits than its factorization.

397577513244816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64208254780 (or 64208254771 counting only the distinct ones).

The product of its digits is 1066867200, while the sum is 72.

The spelling of 397577513244816 in words is "three hundred ninety-seven trillion, five hundred seventy-seven billion, five hundred thirteen million, two hundred forty-four thousand, eight hundred sixteen".