15455274538813 has 8 divisors (see below), whose sum is σ = 15493114176120. Its totient is φ = 15417475180800.

The previous prime is 15455274538757. The next prime is 15455274538849. The reversal of 15455274538813 is 31883547255451.

It can be written as a sum of positive squares in 4 ways, for example, as 3444149528964 + 12011125009849 = 1855842^2 + 3465707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15455274538813 is a prime.

It is a super-2 number, since 2×15455274538813² (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 (15455274508813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9301408 + ... + 10836361.

It is an arithmetic number, because the mean of its divisors is an integer number (1936639272015).

Almost surely, 2^{15455274538813} is an apocalyptic number.

It is an amenable number.

15455274538813 is a deficient number, since it is larger than the sum of its proper divisors (37839637307).

15455274538813 is a wasteful number, since it uses less digits than its factorization.

15455274538813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20139647.

The product of its digits is 80640000, while the sum is 61.

The spelling of 15455274538813 in words is "fifteen trillion, four hundred fifty-five billion, two hundred seventy-four million, five hundred thirty-eight thousand, eight hundred thirteen".