7912916328664 has 128 divisors (see below), whose sum is σ = 16860492792000. Its totient is φ = 3458671017984.

The previous prime is 7912916328641. The next prime is 7912916328697. The reversal of 7912916328664 is 4668236192197.

It is a super-2 number, since 2×7912916328664² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7912916328596 and 7912916328605.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 195684192 + ... + 195724624.

Almost surely, 2^{7912916328664} is an apocalyptic number.

It is an amenable number.

7912916328664 is an abundant number, since it is smaller than the sum of its proper divisors (8947576463336).

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

7912916328664 is a wasteful number, since it uses less digits than its factorization.

7912916328664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41957 (or 41953 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 64.

The spelling of 7912916328664 in words is "seven trillion, nine hundred twelve billion, nine hundred sixteen million, three hundred twenty-eight thousand, six hundred sixty-four".