47420591615 has 4 divisors (see below), whose sum is σ = 56904709944. Its totient is φ = 37936473288.

The previous prime is 47420591557. The next prime is 47420591623. The reversal of 47420591615 is 51619502474.

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 47420591615 - 2⁸ = 47420591359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4742059157 + ... + 4742059166.

It is an arithmetic number, because the mean of its divisors is an integer number (14226177486).

Almost surely, 2^47420591615 is an apocalyptic number.

47420591615 is a deficient number, since it is larger than the sum of its proper divisors (9484118329).

47420591615 is an equidigital number, since it uses as much as digits as its factorization.

47420591615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9484118328.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 47420591615 in words is "forty-seven billion, four hundred twenty million, five hundred ninety-one thousand, six hundred fifteen".