139907678977 has 32 divisors (see below), whose sum is σ = 158780476800. Its totient is φ = 122154278400.

The previous prime is 139907678929. The next prime is 139907679019. The reversal of 139907678977 is 779876709931.

It is not a de Polignac number, because 139907678977 - 2¹¹ = 139907676929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139907678917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23868027 + ... + 23873887.

It is an arithmetic number, because the mean of its divisors is an integer number (4961889900).

Almost surely, 2^139907678977 is an apocalyptic number.

It is an amenable number.

139907678977 is a deficient number, since it is larger than the sum of its proper divisors (18872797823).

139907678977 is a wasteful number, since it uses less digits than its factorization.

139907678977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657.

The product of its (nonzero) digits is 252047376, while the sum is 73.

It can be divided in two parts, 13990 and 7678977, that added together give a palindrome (7692967).

The spelling of 139907678977 in words is "one hundred thirty-nine billion, nine hundred seven million, six hundred seventy-eight thousand, nine hundred seventy-seven".