8461925181 has 12 divisors (see below), whose sum is σ = 12253573852. Its totient is φ = 5627071296.

The previous prime is 8461925141. The next prime is 8461925189. The reversal of 8461925181 is 1815291648.

It is a happy number.

8461925181 is a `hidden beast` number, since 8 + 4 + 619 + 25 + 1 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7133322681 + 1328602500 = 84459^2 + 36450^2 .

It is not a de Polignac number, because 8461925181 - 2¹⁰ = 8461924157 is a prime.

It is a super-2 number, since 2×8461925181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461925189) 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, 1180576 + ... + 1187721.

Almost surely, 2^8461925181 is an apocalyptic number.

It is an amenable number.

8461925181 is a deficient number, since it is larger than the sum of its proper divisors (3791648671).

8461925181 is a wasteful number, since it uses less digits than its factorization.

8461925181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368700 (or 2368697 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 8461925181 is about 91988.7231186519. The cubic root of 8461925181 is about 2037.7757685430.

The spelling of 8461925181 in words is "eight billion, four hundred sixty-one million, nine hundred twenty-five thousand, one hundred eighty-one".