139106460856 has 32 divisors (see below), whose sum is σ = 285169734000. Its totient is φ = 63089367040.

The previous prime is 139106460827. The next prime is 139106460893. The reversal of 139106460856 is 658064601931.

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, 1720795 + ... + 1799818.

Almost surely, 2^139106460856 is an apocalyptic number.

It is an amenable number.

139106460856 is an abundant number, since it is smaller than the sum of its proper divisors (146063273144).

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

139106460856 is a wasteful number, since it uses less digits than its factorization.

139106460856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521079 (or 3521075 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 139106460856 in words is "one hundred thirty-nine billion, one hundred six million, four hundred sixty thousand, eight hundred fifty-six".