139935388031999 has 48 divisors (see below), whose sum is σ = 172773832904640. Its totient is φ = 112616367897600.

The previous prime is 139935388031981. The next prime is 139935388032001. The reversal of 139935388031999 is 999130883539931.

It is not a de Polignac number, because 139935388031999 - 2⁴⁰ = 138835876404223 is a prime.

It is a super-2 number, since 2×139935388031999² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139935388031599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3173044049 + ... + 3173088149.

It is an arithmetic number, because the mean of its divisors is an integer number (3599454852180).

Almost surely, 2^{139935388031999} is an apocalyptic number.

139935388031999 is a deficient number, since it is larger than the sum of its proper divisors (32838444872641).

139935388031999 is a wasteful number, since it uses less digits than its factorization.

139935388031999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53248 (or 53241 counting only the distinct ones).

The product of its (nonzero) digits is 1530550080, while the sum is 80.

The spelling of 139935388031999 in words is "one hundred thirty-nine trillion, nine hundred thirty-five billion, three hundred eighty-eight million, thirty-one thousand, nine hundred ninety-nine".