136446644631 has 16 divisors (see below), whose sum is σ = 208913523840. Its totient is φ = 78342570720.

The previous prime is 136446644597. The next prime is 136446644641.

136446644631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 136446644631 - 2¹⁰ = 136446643607 is a prime.

It is a super-2 number, since 2×136446644631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136446644641) 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, 108808500 + ... + 108809753.

It is an arithmetic number, because the mean of its divisors is an integer number (13057095240).

Almost surely, 2^136446644631 is an apocalyptic number.

136446644631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136446644631 is a deficient number, since it is larger than the sum of its proper divisors (72466879209).

136446644631 is a wasteful number, since it uses less digits than its factorization.

136446644631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217618286.

The product of its digits is 2985984, while the sum is 48.

The spelling of 136446644631 in words is "one hundred thirty-six billion, four hundred forty-six million, six hundred forty-four thousand, six hundred thirty-one".