5638862970 has 96 divisors (see below), whose sum is σ = 15808180752. Its totient is φ = 1386326016.

The previous prime is 5638862941. The next prime is 5638862981. The reversal of 5638862970 is 792688365.

It is a happy number.

5638862970 is a `hidden beast` number, since 5 + 6 + 3 + 8 + 8 + 629 + 7 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2268712161 + 3370150809 = 47631^2 + 58053^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1140624 + ... + 1145556.

Almost surely, 2^5638862970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5638862970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7904090376).

5638862970 is an abundant number, since it is smaller than the sum of its proper divisors (10169317782).

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

5638862970 is a wasteful number, since it uses less digits than its factorization.

5638862970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5936 (or 5933 counting only the distinct ones).

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

The square root of 5638862970 is about 75092.3629272644. The cubic root of 5638862970 is about 1779.9064641755.

The spelling of 5638862970 in words is "five billion, six hundred thirty-eight million, eight hundred sixty-two thousand, nine hundred seventy".