139917797580 has 48 divisors (see below), whose sum is σ = 427385274624. Its totient is φ = 33919465920.

The previous prime is 139917797561. The next prime is 139917797587. The reversal of 139917797580 is 85797719931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (139917797587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105997672 + ... + 105998991.

It is an arithmetic number, because the mean of its divisors is an integer number (8903859888).

Almost surely, 2^139917797580 is an apocalyptic number.

139917797580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139917797580 is an abundant number, since it is smaller than the sum of its proper divisors (287467477044).

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

139917797580 is a wasteful number, since it uses less digits than its factorization.

139917797580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211996686 (or 211996684 counting only the distinct ones).

The product of its (nonzero) digits is 30005640, while the sum is 66.

It can be divided in two parts, 139 and 917797580, that added together give a palindrome (917797719).

The spelling of 139917797580 in words is "one hundred thirty-nine billion, nine hundred seventeen million, seven hundred ninety-seven thousand, five hundred eighty".