139387384280 has 64 divisors (see below), whose sum is σ = 330178118400. Its totient is φ = 52812466560.

The previous prime is 139387384247. The next prime is 139387384289. The reversal of 139387384280 is 82483783931.

It is a super-2 number, since 2×139387384280² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139387384289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8131799 + ... + 8148921.

It is an arithmetic number, because the mean of its divisors is an integer number (5159033100).

Almost surely, 2^139387384280 is an apocalyptic number.

139387384280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139387384280 is an abundant number, since it is smaller than the sum of its proper divisors (190790734120).

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

139387384280 is a wasteful number, since it uses less digits than its factorization.

139387384280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27864 (or 27860 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 139387384280 in words is "one hundred thirty-nine billion, three hundred eighty-seven million, three hundred eighty-four thousand, two hundred eighty".