139078787014656 has 448 divisors, whose sum is σ = 418347291767040. Its totient is φ = 45653769584640.

The previous prime is 139078787014603. The next prime is 139078787014679. The reversal of 139078787014656 is 656410787870931.

139078787014656 is a `hidden beast` number, since 1 + 3 + 9 + 0 + 7 + 87 + 87 + 0 + 1 + 465 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14965968346 + ... + 14965977638.

Almost surely, 2^{139078787014656} is an apocalyptic number.

139078787014656 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 139078787014656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209173645883520).

139078787014656 is an abundant number, since it is smaller than the sum of its proper divisors (279268504752384).

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

139078787014656 is an frugal number, since it uses more digits than its factorization.

139078787014656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10352 (or 10322 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 72.

The spelling of 139078787014656 in words is "one hundred thirty-nine trillion, seventy-eight billion, seven hundred eighty-seven million, fourteen thousand, six hundred fifty-six".