20462313636431 has 4 divisors (see below), whose sum is σ = 20467803930912. Its totient is φ = 20456823341952.

The previous prime is 20462313636407. The next prime is 20462313636433. The reversal of 20462313636431 is 13463631326402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20462313636431 is a prime.

It is a super-2 number, since 2×20462313636431² (a number of 27 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 (20462313636433) 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, 2745141650 + ... + 2745149103.

It is an arithmetic number, because the mean of its divisors is an integer number (5116950982728).

Almost surely, 2^{20462313636431} is an apocalyptic number.

20462313636431 is a deficient number, since it is larger than the sum of its proper divisors (5490294481).

20462313636431 is an equidigital number, since it uses as much as digits as its factorization.

20462313636431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490294480.

The product of its (nonzero) digits is 1119744, while the sum is 44.

The spelling of 20462313636431 in words is "twenty trillion, four hundred sixty-two billion, three hundred thirteen million, six hundred thirty-six thousand, four hundred thirty-one".