47858871545015 has 4 divisors (see below), whose sum is σ = 57430645854024. Its totient is φ = 38287097236008.

The previous prime is 47858871544993. The next prime is 47858871545021. The reversal of 47858871545015 is 51054517885874.

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 47858871545015 - 2²² = 47858867350711 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 3 ways as a sum of consecutive naturals, for example, 4785887154497 + ... + 4785887154506.

It is an arithmetic number, because the mean of its divisors is an integer number (14357661463506).

Almost surely, 2^{47858871545015} is an apocalyptic number.

47858871545015 is a deficient number, since it is larger than the sum of its proper divisors (9571774309009).

47858871545015 is an equidigital number, since it uses as much as digits as its factorization.

47858871545015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571774309008.

The product of its (nonzero) digits is 250880000, while the sum is 68.

The spelling of 47858871545015 in words is "forty-seven trillion, eight hundred fifty-eight billion, eight hundred seventy-one million, five hundred forty-five thousand, fifteen".