139849909056 has 168 divisors, whose sum is σ = 470934251424. Its totient is φ = 39118832640.

The previous prime is 139849909049. The next prime is 139849909079. The reversal of 139849909056 is 650909948931.

139849909056 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 499 + 0 + 90 + 56 = 666.

It is a super-2 number, since 2×139849909056² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139849908984 and 139849909002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 766566 + ... + 931301.

It is an arithmetic number, because the mean of its divisors is an integer number (2803180068).

Almost surely, 2^139849909056 is an apocalyptic number.

139849909056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139849909056 is an abundant number, since it is smaller than the sum of its proper divisors (331084342368).

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

139849909056 is a wasteful number, since it uses less digits than its factorization.

139849909056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697909 (or 1697896 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 63.

The spelling of 139849909056 in words is "one hundred thirty-nine billion, eight hundred forty-nine million, nine hundred nine thousand, fifty-six".