139700488497 has 4 divisors (see below), whose sum is σ = 186267318000. Its totient is φ = 93133658996.

The previous prime is 139700488471. The next prime is 139700488511. The reversal of 139700488497 is 794884007931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 139700488497 - 2³⁴ = 122520619313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139700488497.

It is not an unprimeable number, because it can be changed into a prime (139700488297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23283414747 + ... + 23283414752.

It is an arithmetic number, because the mean of its divisors is an integer number (46566829500).

Almost surely, 2^139700488497 is an apocalyptic number.

It is an amenable number.

139700488497 is a deficient number, since it is larger than the sum of its proper divisors (46566829503).

139700488497 is an equidigital number, since it uses as much as digits as its factorization.

139700488497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46566829502.

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 139700488497 in words is "one hundred thirty-nine billion, seven hundred million, four hundred eighty-eight thousand, four hundred ninety-seven".