13291548861 has 8 divisors (see below), whose sum is σ = 17723047360. Its totient is φ = 8860541472.

The previous prime is 13291548839. The next prime is 13291548883. The reversal of 13291548861 is 16884519231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13291548839) and next prime (13291548883).

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

It is not a de Polignac number, because 13291548861 - 2¹⁵ = 13291516093 is a prime.

It is a super-2 number, since 2×13291548861² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13291548861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13291548761) 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, 54145 + ... + 171798.

It is an arithmetic number, because the mean of its divisors is an integer number (2215380920).

Almost surely, 2^13291548861 is an apocalyptic number.

It is an amenable number.

13291548861 is a deficient number, since it is larger than the sum of its proper divisors (4431498499).

13291548861 is a wasteful number, since it uses less digits than its factorization.

13291548861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245555.

The product of its digits is 414720, while the sum is 48.

The spelling of 13291548861 in words is "thirteen billion, two hundred ninety-one million, five hundred forty-eight thousand, eight hundred sixty-one".