5638742080 has 56 divisors (see below), whose sum is σ = 13680640152. Its totient is φ = 2212933632.

The previous prime is 5638742069. The next prime is 5638742093. The reversal of 5638742080 is 802478365.

It can be written as a sum of positive squares in 4 ways, for example, as 122412096 + 5516329984 = 11064^2 + 74272^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149277 + ... + 183196.

Almost surely, 2^5638742080 is an apocalyptic number.

It is an amenable number.

5638742080 is an abundant number, since it is smaller than the sum of its proper divisors (8041898072).

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

5638742080 is a wasteful number, since it uses less digits than its factorization.

5638742080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332543 (or 332533 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 5638742080 is about 75091.5579809075. The cubic root of 5638742080 is about 1779.8937444463.

The spelling of 5638742080 in words is "five billion, six hundred thirty-eight million, seven hundred forty-two thousand, eighty".