15451560449793 has 80 divisors (see below), whose sum is σ = 25207394279760. Its totient is φ = 9374904354816.

The previous prime is 15451560449761. The next prime is 15451560449803. The reversal of 15451560449793 is 39794406515451.

15451560449793 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 1 + 56 + 0 + 4 + 497 + 93 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 561469971969 + 14890090477824 = 749313^2 + 3858768^2 .

It is not a de Polignac number, because 15451560449793 - 2⁵ = 15451560449761 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15451560449793.

It is not an unprimeable number, because it can be changed into a prime (15451560449393) 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 79 ways as a sum of consecutive naturals, for example, 214351605 + ... + 214423677.

It is an arithmetic number, because the mean of its divisors is an integer number (315092428497).

Almost surely, 2^{15451560449793} is an apocalyptic number.

15451560449793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15451560449793 is a deficient number, since it is larger than the sum of its proper divisors (9755833829967).

15451560449793 is a wasteful number, since it uses less digits than its factorization.

15451560449793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74960 (or 74951 counting only the distinct ones).

The product of its (nonzero) digits is 81648000, while the sum is 63.

The spelling of 15451560449793 in words is "fifteen trillion, four hundred fifty-one billion, five hundred sixty million, four hundred forty-nine thousand, seven hundred ninety-three".