139834174557 has 64 divisors (see below), whose sum is σ = 235805644800. Its totient is φ = 71600505600.

The previous prime is 139834174549. The next prime is 139834174559. The reversal of 139834174557 is 755471438931.

It is not a de Polignac number, because 139834174557 - 2³ = 139834174549 is a prime.

It is a super-2 number, since 2×139834174557² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139834174497 and 139834174506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139834174559) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4493383 + ... + 4524395.

It is an arithmetic number, because the mean of its divisors is an integer number (3684463200).

Almost surely, 2^139834174557 is an apocalyptic number.

It is an amenable number.

139834174557 is a deficient number, since it is larger than the sum of its proper divisors (95971470243).

139834174557 is a wasteful number, since it uses less digits than its factorization.

139834174557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31314.

The product of its digits is 12700800, while the sum is 57.

The spelling of 139834174557 in words is "one hundred thirty-nine billion, eight hundred thirty-four million, one hundred seventy-four thousand, five hundred fifty-seven".