139723837875988 has 6 divisors (see below), whose sum is σ = 244516716282986. Its totient is φ = 69861918937992.

The previous prime is 139723837875971. The next prime is 139723837876069. The reversal of 139723837875988 is 889578738327931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 120049450197264 + 19674387678724 = 10956708^2 + 4435582^2 .

It is a super-2 number, since 2×139723837875988² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139723837875899 and 139723837875908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17465479734495 + ... + 17465479734502.

Almost surely, 2^{139723837875988} is an apocalyptic number.

It is an amenable number.

139723837875988 is a deficient number, since it is larger than the sum of its proper divisors (104792878406998).

139723837875988 is a wasteful number, since it uses less digits than its factorization.

139723837875988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34930959469001 (or 34930959468999 counting only the distinct ones).

The product of its digits is 30725775360, while the sum is 88.

The spelling of 139723837875988 in words is "one hundred thirty-nine trillion, seven hundred twenty-three billion, eight hundred thirty-seven million, eight hundred seventy-five thousand, nine hundred eighty-eight".