13920129454 has 64 divisors (see below), whose sum is σ = 26940211200. Its totient is φ = 5235199200.

The previous prime is 13920129451. The next prime is 13920129493. The reversal of 13920129454 is 45492102931.

It is a super-2 number, since 2×13920129454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13920129451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1996827 + ... + 2003785.

It is an arithmetic number, because the mean of its divisors is an integer number (420940800).

Almost surely, 2^13920129454 is an apocalyptic number.

13920129454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13920129454 is a deficient number, since it is larger than the sum of its proper divisors (13020081746).

13920129454 is a wasteful number, since it uses less digits than its factorization.

13920129454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7429.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 13920129454 in words is "thirteen billion, nine hundred twenty million, one hundred twenty-nine thousand, four hundred fifty-four".