13515426455 has 8 divisors (see below), whose sum is σ = 16563586752. Its totient is φ = 10582291168.

The previous prime is 13515426433. The next prime is 13515426467. The reversal of 13515426455 is 55462451531.

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-13515426455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28755992 + ... + 28756461.

It is an arithmetic number, because the mean of its divisors is an integer number (2070448344).

Almost surely, 2^13515426455 is an apocalyptic number.

13515426455 is a deficient number, since it is larger than the sum of its proper divisors (3048160297).

13515426455 is an equidigital number, since it uses as much as digits as its factorization.

13515426455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57512505.

The product of its digits is 360000, while the sum is 41.

Adding to 13515426455 its reverse (55462451531), we get a palindrome (68977877986).

The spelling of 13515426455 in words is "thirteen billion, five hundred fifteen million, four hundred twenty-six thousand, four hundred fifty-five".