8648574381 has 12 divisors (see below), whose sum is σ = 12493463580. Its totient is φ = 5765218560.

The previous prime is 8648574367. The next prime is 8648574383. The reversal of 8648574381 is 1834758468.

8648574381 is a `hidden beast` number, since 8 + 64 + 8 + 574 + 3 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3763822500 + 4884751881 = 61350^2 + 69891^2 .

It is not a de Polignac number, because 8648574381 - 2²⁹ = 8111703469 is a prime.

It is a super-2 number, since 2×8648574381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8648574383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90775 + ... + 159803.

It is an arithmetic number, because the mean of its divisors is an integer number (1041121965).

Almost surely, 2^8648574381 is an apocalyptic number.

It is an amenable number.

8648574381 is a deficient number, since it is larger than the sum of its proper divisors (3844889199).

8648574381 is a wasteful number, since it uses less digits than its factorization.

8648574381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82956 (or 82953 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The square root of 8648574381 is about 92997.7116976542. The cubic root of 8648574381 is about 2052.6497072032.

The spelling of 8648574381 in words is "eight billion, six hundred forty-eight million, five hundred seventy-four thousand, three hundred eighty-one".