13391861461 has 24 divisors (see below), whose sum is σ = 15403281152. Its totient is φ = 11620065600.

The previous prime is 13391861449. The next prime is 13391861467. The reversal of 13391861461 is 16416819331.

It is not a de Polignac number, because 13391861461 - 2²⁷ = 13257643733 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 (13391861467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249370 + ... + 298276.

Almost surely, 2^13391861461 is an apocalyptic number.

13391861461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13391861461 is a deficient number, since it is larger than the sum of its proper divisors (2011419691).

13391861461 is a wasteful number, since it uses less digits than its factorization.

13391861461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49033 (or 49022 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The spelling of 13391861461 in words is "thirteen billion, three hundred ninety-one million, eight hundred sixty-one thousand, four hundred sixty-one".