139938319608 has 32 divisors (see below), whose sum is σ = 354773208960. Its totient is φ = 45989118560.

The previous prime is 139938319529. The next prime is 139938319649. The reversal of 139938319608 is 806913839931.

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, 41060010 + ... + 41063417.

It is an arithmetic number, because the mean of its divisors is an integer number (11086662780).

Almost surely, 2^139938319608 is an apocalyptic number.

It is an amenable number.

139938319608 is an abundant number, since it is smaller than the sum of its proper divisors (214834889352).

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

139938319608 is a wasteful number, since it uses less digits than its factorization.

139938319608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82123507 (or 82123503 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 60.

The spelling of 139938319608 in words is "one hundred thirty-nine billion, nine hundred thirty-eight million, three hundred nineteen thousand, six hundred eight".