15047992415 has 4 divisors (see below), whose sum is σ = 18057590904. Its totient is φ = 12038393928.

The previous prime is 15047992409. The next prime is 15047992447. The reversal of 15047992415 is 51429974051.

15047992415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15047992415 - 2¹⁰ = 15047991391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15047992415.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504799237 + ... + 1504799246.

It is an arithmetic number, because the mean of its divisors is an integer number (4514397726).

Almost surely, 2^15047992415 is an apocalyptic number.

15047992415 is a deficient number, since it is larger than the sum of its proper divisors (3009598489).

15047992415 is an equidigital number, since it uses as much as digits as its factorization.

15047992415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009598488.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 15047992415 in words is "fifteen billion, forty-seven million, nine hundred ninety-two thousand, four hundred fifteen".