5100534640 has 20 divisors (see below), whose sum is σ = 11858743224. Its totient is φ = 2040213824.

The previous prime is 5100534623. The next prime is 5100534679. The reversal of 5100534640 is 464350015.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×5100534640² = 52030907227679859200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5100534599 and 5100534608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31878262 + ... + 31878421.

Almost surely, 2^5100534640 is an apocalyptic number.

It is an amenable number.

5100534640 is an abundant number, since it is smaller than the sum of its proper divisors (6758208584).

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

5100534640 is a wasteful number, since it uses less digits than its factorization.

5100534640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63756696 (or 63756690 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 5100534640 is about 71418.0274160523. The cubic root of 5100534640 is about 1721.3607673935.

Adding to 5100534640 its reverse (464350015), we get a palindrome (5564884655).

The spelling of 5100534640 in words is "five billion, one hundred million, five hundred thirty-four thousand, six hundred forty".