7988012536 has 48 divisors (see below), whose sum is σ = 17461022040. Its totient is φ = 3415930560.

The previous prime is 7988012521. The next prime is 7988012563. The reversal of 7988012536 is 6352108897.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 7988012536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158611 + ... + 202813.

Almost surely, 2^7988012536 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 7988012536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8730511020).

7988012536 is an abundant number, since it is smaller than the sum of its proper divisors (9473009504).

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

7988012536 is a wasteful number, since it uses less digits than its factorization.

7988012536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44684 (or 44673 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 7988012536 is about 89375.6820169782. The cubic root of 7988012536 is about 1999.0005452950. Note that the first 3 decimals are identical.

It can be divided in two parts, 79880 and 12536, that added together give a square (92416 = 304²).

The spelling of 7988012536 in words is "seven billion, nine hundred eighty-eight million, twelve thousand, five hundred thirty-six".