48164578581 has 16 divisors (see below), whose sum is σ = 73411559424. Its totient is φ = 27515897904.

The previous prime is 48164578571. The next prime is 48164578601. The reversal of 48164578581 is 18587546184.

48164578581 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 48164578581 - 2²⁷ = 48030360853 is a prime.

It is a super-2 number, since 2×48164578581² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48164578571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191205 + ... + 364538.

It is an arithmetic number, because the mean of its divisors is an integer number (4588222464).

Almost surely, 2^48164578581 is an apocalyptic number.

It is an amenable number.

48164578581 is a deficient number, since it is larger than the sum of its proper divisors (25246980843).

48164578581 is a wasteful number, since it uses less digits than its factorization.

48164578581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559880.

The product of its digits is 8601600, while the sum is 57.

The spelling of 48164578581 in words is "forty-eight billion, one hundred sixty-four million, five hundred seventy-eight thousand, five hundred eighty-one".