396469985265 has 24 divisors (see below), whose sum is σ = 687313598400. Its totient is φ = 211420210464.

The previous prime is 396469985243. The next prime is 396469985267. The reversal of 396469985265 is 562589964693.

396469985265 is a `hidden beast` number, since 3 + 9 + 6 + 4 + 6 + 9 + 98 + 526 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-396469985265 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 396469985193 and 396469985202.

It is not an unprimeable number, because it can be changed into a prime (396469985267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316615 + ... + 945084.

It is an arithmetic number, because the mean of its divisors is an integer number (28638066600).

Almost surely, 2^396469985265 is an apocalyptic number.

It is an amenable number.

396469985265 is a deficient number, since it is larger than the sum of its proper divisors (290843613135).

396469985265 is a wasteful number, since it uses less digits than its factorization.

396469985265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268693 (or 1268690 counting only the distinct ones).

The product of its digits is 755827200, while the sum is 72.

The spelling of 396469985265 in words is "three hundred ninety-six billion, four hundred sixty-nine million, nine hundred eighty-five thousand, two hundred sixty-five".