20344702272631 has 24 divisors (see below), whose sum is σ = 22416896502000. Its totient is φ = 18450094924800.

The previous prime is 20344702272611. The next prime is 20344702272649. The reversal of 20344702272631 is 13627220744302.

It is not a de Polignac number, because 20344702272631 - 2²¹ = 20344700175479 is a prime.

It is a super-2 number, since 2×20344702272631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344702272611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274813401 + ... + 274887421.

It is an arithmetic number, because the mean of its divisors is an integer number (934037354250).

Almost surely, 2^{20344702272631} is an apocalyptic number.

20344702272631 is a deficient number, since it is larger than the sum of its proper divisors (2072194229369).

20344702272631 is a wasteful number, since it uses less digits than its factorization.

20344702272631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79551 (or 79540 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 20344702272631 in words is "twenty trillion, three hundred forty-four billion, seven hundred two million, two hundred seventy-two thousand, six hundred thirty-one".