13646473725 has 12 divisors (see below), whose sum is σ = 22562170016. Its totient is φ = 7278119280.

The previous prime is 13646473697. The next prime is 13646473727. The reversal of 13646473725 is 52737464631.

It is not a de Polignac number, because 13646473725 - 2⁵ = 13646473693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13646473727) 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, 90976417 + ... + 90976566.

Almost surely, 2^13646473725 is an apocalyptic number.

13646473725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13646473725 is a deficient number, since it is larger than the sum of its proper divisors (8915696291).

13646473725 is a wasteful number, since it uses less digits than its factorization.

13646473725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181952996 (or 181952991 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 48.

The spelling of 13646473725 in words is "thirteen billion, six hundred forty-six million, four hundred seventy-three thousand, seven hundred twenty-five".