139387968720 has 2880 divisors, whose sum is σ = 713654323200. Its totient is φ = 24455208960.

The previous prime is 139387968719. The next prime is 139387968721. The reversal of 139387968720 is 27869783931.

139387968720 is a `hidden beast` number, since 1 + 393 + 87 + 96 + 87 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (139387968719) and next prime (139387968721).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139387968721) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 4806481666 + ... + 4806481694.

It is an arithmetic number, because the mean of its divisors is an integer number (247796640).

Almost surely, 2^139387968720 is an apocalyptic number.

139387968720 is a gapful number since it is divisible by the number (10) 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 139387968720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356827161600).

139387968720 is an abundant number, since it is smaller than the sum of its proper divisors (574266354480).

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

139387968720 is a wasteful number, since it uses less digits than its factorization.

139387968720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 139387968720 in words is "one hundred thirty-nine billion, three hundred eighty-seven million, nine hundred sixty-eight thousand, seven hundred twenty".