136885909588631 has 16 divisors (see below), whose sum is σ = 167283487828800. Its totient is φ = 109335612940800.

The previous prime is 136885909588619. The next prime is 136885909588669.

136885909588631 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136885909588631 is a prime.

It is a super-2 number, since 2×136885909588631² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136885909528631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5694551156 + ... + 5694575193.

It is an arithmetic number, because the mean of its divisors is an integer number (10455217989300).

Almost surely, 2^{136885909588631} is an apocalyptic number.

136885909588631 is a deficient number, since it is larger than the sum of its proper divisors (30397578240169).

136885909588631 is a wasteful number, since it uses less digits than its factorization.

136885909588631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389126474.

The product of its (nonzero) digits is 2687385600, while the sum is 80.

The spelling of 136885909588631 in words is "one hundred thirty-six trillion, eight hundred eighty-five billion, nine hundred nine million, five hundred eighty-eight thousand, six hundred thirty-one".