47581865523577 has 24 divisors (see below), whose sum is σ = 60412480346592. Its totient is φ = 37058173992000.

The previous prime is 47581865523529. The next prime is 47581865523601. The reversal of 47581865523577 is 77532556818574.

It is not a de Polignac number, because 47581865523577 - 2⁷ = 47581865523449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47581865563577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21072799 + ... + 23221252.

It is an arithmetic number, because the mean of its divisors is an integer number (2517186681108).

Almost surely, 2^{47581865523577} is an apocalyptic number.

It is an amenable number.

47581865523577 is a deficient number, since it is larger than the sum of its proper divisors (12830614823015).

47581865523577 is a wasteful number, since it uses less digits than its factorization.

47581865523577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44296069 (or 44296062 counting only the distinct ones).

The product of its digits is 1975680000, while the sum is 73.

The spelling of 47581865523577 in words is "forty-seven trillion, five hundred eighty-one billion, eight hundred sixty-five million, five hundred twenty-three thousand, five hundred seventy-seven".