139851617873 has 16 divisors (see below), whose sum is σ = 161767419840. Its totient is φ = 119567174400.

The previous prime is 139851617837. The next prime is 139851617897. The reversal of 139851617873 is 378716158931.

It is a cyclic number.

It is not a de Polignac number, because 139851617873 - 2⁶ = 139851617809 is a prime.

It is a super-2 number, since 2×139851617873² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139851617813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2413508 + ... + 2470773.

It is an arithmetic number, because the mean of its divisors is an integer number (10110463740).

Almost surely, 2^139851617873 is an apocalyptic number.

It is an amenable number.

139851617873 is a deficient number, since it is larger than the sum of its proper divisors (21915801967).

139851617873 is a wasteful number, since it uses less digits than its factorization.

139851617873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884448.

The product of its digits is 7620480, while the sum is 59.

The spelling of 139851617873 in words is "one hundred thirty-nine billion, eight hundred fifty-one million, six hundred seventeen thousand, eight hundred seventy-three".