47721437475 has 24 divisors (see below), whose sum is σ = 78907983792. Its totient is φ = 25448678400.

The previous prime is 47721437447. The next prime is 47721437513. The reversal of 47721437475 is 57473412774.

47721437475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47721437475 - 2¹⁷ = 47721306403 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 795535 + ... + 853415.

It is an arithmetic number, because the mean of its divisors is an integer number (3287832658).

Almost surely, 2^47721437475 is an apocalyptic number.

47721437475 is a deficient number, since it is larger than the sum of its proper divisors (31186546317).

47721437475 is a wasteful number, since it uses less digits than its factorization.

47721437475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68887 (or 68882 counting only the distinct ones).

The product of its digits is 4609920, while the sum is 51.

The spelling of 47721437475 in words is "forty-seven billion, seven hundred twenty-one million, four hundred thirty-seven thousand, four hundred seventy-five".