139867135720 has 64 divisors (see below), whose sum is σ = 350595378000. Its totient is φ = 49862443008.

The previous prime is 139867135717. The next prime is 139867135757. The reversal of 139867135720 is 27531768931.

It can be written as a sum of positive squares in 8 ways, for example, as 58586266116 + 81280869604 = 242046^2 + 285098^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4622425 + ... + 4652584.

Almost surely, 2^139867135720 is an apocalyptic number.

139867135720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139867135720 is an abundant number, since it is smaller than the sum of its proper divisors (210728242280).

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

139867135720 is a wasteful number, since it uses less digits than its factorization.

139867135720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9275062 (or 9275058 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 139867135720 in words is "one hundred thirty-nine billion, eight hundred sixty-seven million, one hundred thirty-five thousand, seven hundred twenty".