396994366945 has 32 divisors (see below), whose sum is σ = 533875504896. Its totient is φ = 280852588800.

The previous prime is 396994366939. The next prime is 396994366961. The reversal of 396994366945 is 549663499693.

It is not a de Polignac number, because 396994366945 - 2⁵ = 396994366913 is a prime.

It is a super-2 number, since 2×396994366945² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9415260 + ... + 9457330.

It is an arithmetic number, because the mean of its divisors is an integer number (16683609528).

Almost surely, 2^396994366945 is an apocalyptic number.

It is an amenable number.

396994366945 is a deficient number, since it is larger than the sum of its proper divisors (136881137951).

396994366945 is a wasteful number, since it uses less digits than its factorization.

396994366945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46761.

The product of its digits is 1020366720, while the sum is 73.

The spelling of 396994366945 in words is "three hundred ninety-six billion, nine hundred ninety-four million, three hundred sixty-six thousand, nine hundred forty-five".