13726325631 has 4 divisors (see below), whose sum is σ = 18301767512. Its totient is φ = 9150883752.

The previous prime is 13726325621. The next prime is 13726325647. The reversal of 13726325631 is 13652362731.

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

It is a de Polignac number, because none of the positive numbers 2^k-13726325631 is a prime.

It is a super-2 number, since 2×13726325631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13726325631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13726325621) 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, 2287720936 + ... + 2287720941.

It is an arithmetic number, because the mean of its divisors is an integer number (4575441878).

Almost surely, 2^13726325631 is an apocalyptic number.

13726325631 is a deficient number, since it is larger than the sum of its proper divisors (4575441881).

13726325631 is an equidigital number, since it uses as much as digits as its factorization.

13726325631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575441880.

The product of its digits is 136080, while the sum is 39.

The spelling of 13726325631 in words is "thirteen billion, seven hundred twenty-six million, three hundred twenty-five thousand, six hundred thirty-one".