47815853375791 has 4 divisors (see below), whose sum is σ = 47969602100784. Its totient is φ = 47662104650800.

The previous prime is 47815853375753. The next prime is 47815853375869. The reversal of 47815853375791 is 19757335851874.

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 47815853375791 - 2³⁷ = 47678414422319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47815853378791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76874362030 + ... + 76874362651.

It is an arithmetic number, because the mean of its divisors is an integer number (11992400525196).

Almost surely, 2^{47815853375791} is an apocalyptic number.

47815853375791 is a deficient number, since it is larger than the sum of its proper divisors (153748724993).

47815853375791 is a wasteful number, since it uses less digits than its factorization.

47815853375791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153748724992.

The product of its digits is 889056000, while the sum is 73.

The spelling of 47815853375791 in words is "forty-seven trillion, eight hundred fifteen billion, eight hundred fifty-three million, three hundred seventy-five thousand, seven hundred ninety-one".