13731640535 has 8 divisors (see below), whose sum is σ = 16530954336. Its totient is φ = 10949988640.

The previous prime is 13731640513. The next prime is 13731640541. The reversal of 13731640535 is 53504613731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13731640535 - 2¹⁶ = 13731574999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4413764 + ... + 4416873.

It is an arithmetic number, because the mean of its divisors is an integer number (2066369292).

Almost surely, 2^13731640535 is an apocalyptic number.

13731640535 is a deficient number, since it is larger than the sum of its proper divisors (2799313801).

13731640535 is an equidigital number, since it uses as much as digits as its factorization.

13731640535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8830953.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 13731640535 in words is "thirteen billion, seven hundred thirty-one million, six hundred forty thousand, five hundred thirty-five".