136631454732631 has 32 divisors (see below), whose sum is σ = 142595401320000. Its totient is φ = 130755319898112.

The previous prime is 136631454732587. The next prime is 136631454732671. The reversal of 136631454732631 is 136237454136631.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136631454732631 is a prime.

It is a super-2 number, since 2×136631454732631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136631454732671) 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, 13960499320 + ... + 13960509106.

It is an arithmetic number, because the mean of its divisors is an integer number (4456106291250).

Almost surely, 2^{136631454732631} is an apocalyptic number.

136631454732631 is a deficient number, since it is larger than the sum of its proper divisors (5963946587369).

136631454732631 is a wasteful number, since it uses less digits than its factorization.

136631454732631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17251.

The product of its digits is 19595520, while the sum is 55.

The spelling of 136631454732631 in words is "one hundred thirty-six trillion, six hundred thirty-one billion, four hundred fifty-four million, seven hundred thirty-two thousand, six hundred thirty-one".