139971756495 has 32 divisors (see below), whose sum is σ = 239304162240. Its totient is φ = 69615728640.

The previous prime is 139971756493. The next prime is 139971756517. The reversal of 139971756495 is 594657179931.

It is not a de Polignac number, because 139971756495 - 2¹ = 139971756493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139971756493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2490136 + ... + 2545725.

It is an arithmetic number, because the mean of its divisors is an integer number (7478255070).

Almost surely, 2^139971756495 is an apocalyptic number.

139971756495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139971756495 is a deficient number, since it is larger than the sum of its proper divisors (99332405745).

139971756495 is a wasteful number, since it uses less digits than its factorization.

139971756495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035995.

The product of its digits is 64297800, while the sum is 66.

The spelling of 139971756495 in words is "one hundred thirty-nine billion, nine hundred seventy-one million, seven hundred fifty-six thousand, four hundred ninety-five".