136752257631 has 32 divisors (see below), whose sum is σ = 205188749568. Its totient is φ = 80284746240.

The previous prime is 136752257591. The next prime is 136752257657.

136752257631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 136752257631 - 2⁹ = 136752257119 is a prime.

It is a super-2 number, since 2×136752257631² (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 (136752257671) 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, 30471 + ... + 523863.

It is an arithmetic number, because the mean of its divisors is an integer number (6412148424).

Almost surely, 2^136752257631 is an apocalyptic number.

136752257631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136752257631 is a deficient number, since it is larger than the sum of its proper divisors (68436491937).

136752257631 is a wasteful number, since it uses less digits than its factorization.

136752257631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493671.

The product of its digits is 1587600, while the sum is 48.

The spelling of 136752257631 in words is "one hundred thirty-six billion, seven hundred fifty-two million, two hundred fifty-seven thousand, six hundred thirty-one".