5638770657 has 24 divisors (see below), whose sum is σ = 9233078400. Its totient is φ = 3287379168.

The previous prime is 5638770653. The next prime is 5638770661. The reversal of 5638770657 is 7560778365.

5638770657 is a `hidden beast` number, since 563 + 8 + 7 + 70 + 6 + 5 + 7 = 666.

5638770657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5638770653) and next prime (5638770661).

It is not a de Polignac number, because 5638770657 - 2² = 5638770653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5638770653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1266057 + ... + 1270502.

It is an arithmetic number, because the mean of its divisors is an integer number (384711600).

Almost surely, 2^5638770657 is an apocalyptic number.

5638770657 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

5638770657 is a deficient number, since it is larger than the sum of its proper divisors (3594307743).

5638770657 is a wasteful number, since it uses less digits than its factorization.

5638770657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536597 (or 2536594 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 54.

The square root of 5638770657 is about 75091.7482617098. The cubic root of 5638770657 is about 1779.8967512598.

The spelling of 5638770657 in words is "five billion, six hundred thirty-eight million, seven hundred seventy thousand, six hundred fifty-seven".