5634765621 has 8 divisors (see below), whose sum is σ = 8347800960. Its totient is φ = 3756510396.

The previous prime is 5634765589. The next prime is 5634765641. The reversal of 5634765621 is 1265674365.

5634765621 is a `hidden beast` number, since 5 + 634 + 7 + 6 + 5 + 6 + 2 + 1 = 666.

It is not a de Polignac number, because 5634765621 - 2⁵ = 5634765589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5634765641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104347485 + ... + 104347538.

It is an arithmetic number, because the mean of its divisors is an integer number (1043475120).

Almost surely, 2^5634765621 is an apocalyptic number.

It is an amenable number.

5634765621 is a deficient number, since it is larger than the sum of its proper divisors (2713035339).

5634765621 is a wasteful number, since it uses less digits than its factorization.

5634765621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208695032 (or 208695026 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 5634765621 is about 75065.0759075084. The cubic root of 5634765621 is about 1779.4752504641.

The spelling of 5634765621 in words is "five billion, six hundred thirty-four million, seven hundred sixty-five thousand, six hundred twenty-one".