5157921938 has 16 divisors (see below), whose sum is σ = 8358831936. Its totient is φ = 2372921040.

The previous prime is 5157921863. The next prime is 5157921947. The reversal of 5157921938 is 8391297515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310856 + ... + 327027.

It is an arithmetic number, because the mean of its divisors is an integer number (522426996).

Almost surely, 2^5157921938 is an apocalyptic number.

5157921938 is a deficient number, since it is larger than the sum of its proper divisors (3200909998).

5157921938 is a wasteful number, since it uses less digits than its factorization.

5157921938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638209.

The product of its digits is 680400, while the sum is 50.

The square root of 5157921938 is about 71818.6740200625. The cubic root of 5157921938 is about 1727.7925153917.

The spelling of 5157921938 in words is "five billion, one hundred fifty-seven million, nine hundred twenty-one thousand, nine hundred thirty-eight".