13437673431 has 64 divisors (see below), whose sum is σ = 22861052928. Its totient is φ = 6831433728.

The previous prime is 13437673427. The next prime is 13437673439.

13437673431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13437673431 - 2² = 13437673427 is a prime.

It is a super-2 number, since 2×13437673431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13437673439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1074591 + ... + 1087023.

It is an arithmetic number, because the mean of its divisors is an integer number (357203952).

Almost surely, 2^13437673431 is an apocalyptic number.

13437673431 is a deficient number, since it is larger than the sum of its proper divisors (9423379497).

13437673431 is a wasteful number, since it uses less digits than its factorization.

13437673431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12600.

The product of its digits is 381024, while the sum is 42.

The spelling of 13437673431 in words is "thirteen billion, four hundred thirty-seven million, six hundred seventy-three thousand, four hundred thirty-one".