139274848656 has 100 divisors (see below), whose sum is σ = 403363034800. Its totient is φ = 46394866368.

The previous prime is 139274848651. The next prime is 139274848673. The reversal of 139274848656 is 656848472931.

139274848656 is a `hidden beast` number, since 1 + 3 + 9 + 27 + 484 + 86 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 139274848593 and 139274848602.

It is not an unprimeable number, because it can be changed into a prime (139274848651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2012355 + ... + 2080413.

It is an arithmetic number, because the mean of its divisors is an integer number (4033630348).

Almost surely, 2^139274848656 is an apocalyptic number.

139274848656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139274848656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201681517400).

139274848656 is an abundant number, since it is smaller than the sum of its proper divisors (264088186144).

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

139274848656 is a wasteful number, since it uses less digits than its factorization.

139274848656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69658 (or 69643 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 139274848656 in words is "one hundred thirty-nine billion, two hundred seventy-four million, eight hundred forty-eight thousand, six hundred fifty-six".