12357549441391 has 128 divisors (see below), whose sum is σ = 16790635929600. Its totient is φ = 8984393510400.

The previous prime is 12357549441389. The next prime is 12357549441439. The reversal of 12357549441391 is 19314494575321.

It is not a de Polignac number, because 12357549441391 - 2¹ = 12357549441389 is a prime.

It is a super-2 number, since 2×12357549441391² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12357549441191) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4882475796 + ... + 4882478326.

It is an arithmetic number, because the mean of its divisors is an integer number (131176843200).

Almost surely, 2^{12357549441391} is an apocalyptic number.

12357549441391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12357549441391 is a deficient number, since it is larger than the sum of its proper divisors (4433086488209).

12357549441391 is a wasteful number, since it uses less digits than its factorization.

12357549441391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210 (or 3196 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 58.

The spelling of 12357549441391 in words is "twelve trillion, three hundred fifty-seven billion, five hundred forty-nine million, four hundred forty-one thousand, three hundred ninety-one".