13538455291 has 8 divisors (see below), whose sum is σ = 14417698464. Its totient is φ = 12668419200.

The previous prime is 13538455279. The next prime is 13538455313. The reversal of 13538455291 is 19255483531.

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

It is a cyclic number.

It is not a de Polignac number, because 13538455291 - 2²¹ = 13536358139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13538455261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2298735 + ... + 2304616.

It is an arithmetic number, because the mean of its divisors is an integer number (1802212308).

Almost surely, 2^13538455291 is an apocalyptic number.

13538455291 is a deficient number, since it is larger than the sum of its proper divisors (879243173).

13538455291 is a wasteful number, since it uses less digits than its factorization.

13538455291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603541.

The product of its digits is 648000, while the sum is 46.

The spelling of 13538455291 in words is "thirteen billion, five hundred thirty-eight million, four hundred fifty-five thousand, two hundred ninety-one".