20175929764 has 81 divisors (see below), whose sum is σ = 38269363041. Its totient is φ = 9306591840.

The previous prime is 20175929759. The next prime is 20175929773. The reversal of 20175929764 is 46792957102.

The square root of 20175929764 is 142042.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10579768164 + 9596161600 = 102858^2 + 97960^2 .

It is a super-2 number, since 2×20175929764² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 255391477 + ... + 255391555.

Almost surely, 2^20175929764 is an apocalyptic number.

20175929764 is the 142042-nd square number.

It is an amenable number.

20175929764 is a deficient number, since it is larger than the sum of its proper divisors (18093433277).

20175929764 is an equidigital number, since it uses as much as digits as its factorization.

20175929764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 20175929764 in words is "twenty billion, one hundred seventy-five million, nine hundred twenty-nine thousand, seven hundred sixty-four".