396919492768 has 48 divisors (see below), whose sum is σ = 792244601064. Its totient is φ = 195729817600.

The previous prime is 396919492763. The next prime is 396919492787. The reversal of 396919492768 is 867294919693.

It can be written as a sum of positive squares in 4 ways, for example, as 291224281104 + 105695211664 = 539652^2 + 325108^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 396919492768.

It is not an unprimeable number, because it can be changed into a prime (396919492763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591696 + ... + 1069552.

Almost surely, 2^396919492768 is an apocalyptic number.

It is an amenable number.

396919492768 is a deficient number, since it is larger than the sum of its proper divisors (395325108296).

396919492768 is a wasteful number, since it uses less digits than its factorization.

396919492768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478225 (or 478217 counting only the distinct ones).

The product of its digits is 317447424, while the sum is 73.

The spelling of 396919492768 in words is "three hundred ninety-six billion, nine hundred nineteen million, four hundred ninety-two thousand, seven hundred sixty-eight".