139391703678 has 16 divisors (see below), whose sum is σ = 281543640336. Its totient is φ = 46003862400.

The previous prime is 139391703637. The next prime is 139391703697. The reversal of 139391703678 is 876307193931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115009051 + ... + 115010262.

It is an arithmetic number, because the mean of its divisors is an integer number (17596477521).

Almost surely, 2^139391703678 is an apocalyptic number.

139391703678 is an abundant number, since it is smaller than the sum of its proper divisors (142151936658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139391703678 is a wasteful number, since it uses less digits than its factorization.

139391703678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230019419.

The product of its (nonzero) digits is 5143824, while the sum is 57.

The spelling of 139391703678 in words is "one hundred thirty-nine billion, three hundred ninety-one million, seven hundred three thousand, six hundred seventy-eight".