7988738364 has 36 divisors (see below), whose sum is σ = 20524806120. Its totient is φ = 2619257760.

The previous prime is 7988738363. The next prime is 7988738377. The reversal of 7988738364 is 4638378897.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7988738363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1816734 + ... + 1821125.

Almost surely, 2^7988738364 is an apocalyptic number.

It is an amenable number.

7988738364 is an abundant number, since it is smaller than the sum of its proper divisors (12536067756).

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

7988738364 is a wasteful number, since it uses less digits than its factorization.

7988738364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637930 (or 3637925 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The square root of 7988738364 is about 89379.7424699803. The cubic root of 7988738364 is about 1999.0610896260.

The spelling of 7988738364 in words is "seven billion, nine hundred eighty-eight million, seven hundred thirty-eight thousand, three hundred sixty-four".