139757757931 has 16 divisors (see below), whose sum is σ = 156187012608. Its totient is φ = 123955927200.

The previous prime is 139757757917. The next prime is 139757757941.

139757757931 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 139757757931 - 2¹³ = 139757749739 is a prime.

It is a super-2 number, since 2×139757757931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139757757941) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 246366 + ... + 583276.

It is an arithmetic number, because the mean of its divisors is an integer number (9761688288).

Almost surely, 2^139757757931 is an apocalyptic number.

139757757931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

139757757931 is a deficient number, since it is larger than the sum of its proper divisors (16429254677).

139757757931 is a wasteful number, since it uses less digits than its factorization.

139757757931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337842.

The product of its digits is 43758225, while the sum is 64.

The spelling of 139757757931 in words is "one hundred thirty-nine billion, seven hundred fifty-seven million, seven hundred fifty-seven thousand, nine hundred thirty-one".