13725914643 has 36 divisors (see below), whose sum is σ = 23661983640. Its totient is φ = 7840944720.

The previous prime is 13725914641. The next prime is 13725914681. The reversal of 13725914643 is 34641952731.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

13725914643 is a `hidden beast` number, since 13 + 7 + 2 + 591 + 4 + 6 + 43 = 666.

It is not a de Polignac number, because 13725914643 - 2¹ = 13725914641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13725914641) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4259773 + ... + 4262993.

Almost surely, 2^13725914643 is an apocalyptic number.

13725914643 is a deficient number, since it is larger than the sum of its proper divisors (9936068997).

13725914643 is an frugal number, since it uses more digits than its factorization.

13725914643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6465 (or 3231 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 13725914643 in words is "thirteen billion, seven hundred twenty-five million, nine hundred fourteen thousand, six hundred forty-three".