136724746431 has 64 divisors (see below), whose sum is σ = 238217269248. Its totient is φ = 67690487808.

The previous prime is 136724746357. The next prime is 136724746451. The reversal of 136724746431 is 134647427631.

It is not a de Polignac number, because 136724746431 - 2¹⁷ = 136724615359 is a prime.

It is a super-2 number, since 2×136724746431² (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 (136724746451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1663111 + ... + 1743383.

It is an arithmetic number, because the mean of its divisors is an integer number (3722144832).

Almost surely, 2^136724746431 is an apocalyptic number.

136724746431 is a deficient number, since it is larger than the sum of its proper divisors (101492522817).

136724746431 is a wasteful number, since it uses less digits than its factorization.

136724746431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80680.

The product of its digits is 2032128, while the sum is 48.

The spelling of 136724746431 in words is "one hundred thirty-six billion, seven hundred twenty-four million, seven hundred forty-six thousand, four hundred thirty-one".