13640026463 has 32 divisors (see below), whose sum is σ = 16284672000. Its totient is φ = 11414905152.

The previous prime is 13640026457. The next prime is 13640026529. The reversal of 13640026463 is 36462004631.

It is not a de Polignac number, because 13640026463 - 2⁴ = 13640026447 is a prime.

It is a super-2 number, since 2×13640026463² (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 (13640026403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9172106 + ... + 9173592.

It is an arithmetic number, because the mean of its divisors is an integer number (508896000).

Almost surely, 2^13640026463 is an apocalyptic number.

13640026463 is a deficient number, since it is larger than the sum of its proper divisors (2644645537).

13640026463 is an equidigital number, since it uses as much as digits as its factorization.

13640026463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 13640026463 in words is "thirteen billion, six hundred forty million, twenty-six thousand, four hundred sixty-three".