13504603479 has 16 divisors (see below), whose sum is σ = 18824582400. Its totient is φ = 8611607928.

The previous prime is 13504603477. The next prime is 13504603481. The reversal of 13504603479 is 97430640531.

It is an interprime number because it is at equal distance from previous prime (13504603477) and next prime (13504603481).

It is not a de Polignac number, because 13504603479 - 2¹ = 13504603477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13504603479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13504603477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148489 + ... + 221490.

It is an arithmetic number, because the mean of its divisors is an integer number (1176536400).

Almost surely, 2^13504603479 is an apocalyptic number.

13504603479 is a deficient number, since it is larger than the sum of its proper divisors (5319978921).

13504603479 is an frugal number, since it uses more digits than its factorization.

13504603479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370051 (or 370005 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 13504603479 in words is "thirteen billion, five hundred four million, six hundred three thousand, four hundred seventy-nine".