136625526631 has 4 divisors (see below), whose sum is σ = 149046029064. Its totient is φ = 124205024200.

The previous prime is 136625526623. The next prime is 136625526649.

136625526631 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136625526631 - 2³ = 136625526623 is a prime.

It is a super-2 number, since 2×136625526631² (a number of 23 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 (136625526931) 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, 6210251200 + ... + 6210251221.

It is an arithmetic number, because the mean of its divisors is an integer number (37261507266).

Almost surely, 2^136625526631 is an apocalyptic number.

136625526631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136625526631 is a deficient number, since it is larger than the sum of its proper divisors (12420502433).

136625526631 is a wasteful number, since it uses less digits than its factorization.

136625526631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12420502432.

The product of its digits is 1166400, while the sum is 46.

The spelling of 136625526631 in words is "one hundred thirty-six billion, six hundred twenty-five million, five hundred twenty-six thousand, six hundred thirty-one".