139044910497 has 8 divisors (see below), whose sum is σ = 189337750656. Its totient is φ = 90724338672.

The previous prime is 139044910453. The next prime is 139044910513. The reversal of 139044910497 is 794019440931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139044910497 - 2²² = 139040716193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139044910397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493066918 + ... + 493067199.

It is an arithmetic number, because the mean of its divisors is an integer number (23667218832).

Almost surely, 2^139044910497 is an apocalyptic number.

It is an amenable number.

139044910497 is a deficient number, since it is larger than the sum of its proper divisors (50292840159).

139044910497 is an equidigital number, since it uses as much as digits as its factorization.

139044910497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986134167.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 139044910497 in words is "one hundred thirty-nine billion, forty-four million, nine hundred ten thousand, four hundred ninety-seven".