13726761631 has 12 divisors (see below), whose sum is σ = 15237493992. Its totient is φ = 12355310000.

The previous prime is 13726761623. The next prime is 13726761667. The reversal of 13726761631 is 13616762731.

It is not a de Polignac number, because 13726761631 - 2³ = 13726761623 is a prime.

It is a super-2 number, since 2×13726761631² (a number of 21 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 (13726761431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 549385 + ... + 573826.

It is an arithmetic number, because the mean of its divisors is an integer number (1269791166).

Almost surely, 2^13726761631 is an apocalyptic number.

13726761631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13726761631 is a deficient number, since it is larger than the sum of its proper divisors (1510732361).

13726761631 is a wasteful number, since it uses less digits than its factorization.

13726761631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123334 (or 1123323 counting only the distinct ones).

The product of its digits is 190512, while the sum is 43.

The spelling of 13726761631 in words is "thirteen billion, seven hundred twenty-six million, seven hundred sixty-one thousand, six hundred thirty-one".