7912995444864 has 192 divisors, whose sum is σ = 22909416566400. Its totient is φ = 2621616814080.

The previous prime is 7912995444857. The next prime is 7912995444967. The reversal of 7912995444864 is 4684445992197.

7912995444864 is a `hidden beast` number, since 7 + 9 + 1 + 2 + 99 + 54 + 4 + 486 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a junction number, because it is equal to n+sod(n) for n = 7912995444792 and 7912995444801.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130778202 + ... + 130838694.

It is an arithmetic number, because the mean of its divisors is an integer number (119319877950).

Almost surely, 2^{7912995444864} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7912995444864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11454708283200).

7912995444864 is an abundant number, since it is smaller than the sum of its proper divisors (14996421121536).

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

7912995444864 is a wasteful number, since it uses less digits than its factorization.

7912995444864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61203 (or 61188 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 72.

The spelling of 7912995444864 in words is "seven trillion, nine hundred twelve billion, nine hundred ninety-five million, four hundred forty-four thousand, eight hundred sixty-four".