13974481451 has 12 divisors (see below), whose sum is σ = 16652520360. Its totient is φ = 11685975840.

The previous prime is 13974481447. The next prime is 13974481453. The reversal of 13974481451 is 15418447931.

It is not a de Polignac number, because 13974481451 - 2² = 13974481447 is a prime.

It is a super-2 number, since 2×13974481451² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13974481396 and 13974481405.

It is not an unprimeable number, because it can be changed into a prime (13974481453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3475961 + ... + 3479978.

It is an arithmetic number, because the mean of its divisors is an integer number (1387710030).

Almost surely, 2^13974481451 is an apocalyptic number.

13974481451 is a deficient number, since it is larger than the sum of its proper divisors (2678038909).

13974481451 is an equidigital number, since it uses as much as digits as its factorization.

13974481451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955994 (or 6955987 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The spelling of 13974481451 in words is "thirteen billion, nine hundred seventy-four million, four hundred eighty-one thousand, four hundred fifty-one".