7994052864 has 216 divisors, whose sum is σ = 27500548320. Its totient is φ = 2283918336.

The previous prime is 7994052853. The next prime is 7994052877. The reversal of 7994052864 is 4682504997.

7994052864 is a `hidden beast` number, since 79 + 9 + 40 + 528 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 7994052864.

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, 326887 + ... + 350489.

Almost surely, 2^7994052864 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 7994052864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13750274160).

7994052864 is an abundant number, since it is smaller than the sum of its proper divisors (19506495456).

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

7994052864 is a wasteful number, since it uses less digits than its factorization.

7994052864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23642 (or 23615 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 7994052864 is about 89409.4674181655. The cubic root of 7994052864 is about 1999.5042824756.

The spelling of 7994052864 in words is "seven billion, nine hundred ninety-four million, fifty-two thousand, eight hundred sixty-four".