2412613881 has 18 divisors (see below), whose sum is σ = 3571280622. Its totient is φ = 1568566080.

The previous prime is 2412613877. The next prime is 2412613909. The reversal of 2412613881 is 1883162142.

2412613881 is a `hidden beast` number, since 24 + 12 + 613 + 8 + 8 + 1 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 3767481 + 2408846400 = 1941^2 + 49080^2 .

It is not a de Polignac number, because 2412613881 - 2² = 2412613877 is a prime.

It is a super-2 number, since 2×2412613881² = 11641411477587764322, which 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 (2412613831) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 942255 + ... + 944811.

It is an arithmetic number, because the mean of its divisors is an integer number (198404479).

Almost surely, 2^2412613881 is an apocalyptic number.

It is an amenable number.

2412613881 is a deficient number, since it is larger than the sum of its proper divisors (1158666741).

2412613881 is an frugal number, since it uses more digits than its factorization.

2412613881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161 (or 2601 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 2412613881 is about 49118.3660253474. The cubic root of 2412613881 is about 1341.2073993523.

The spelling of 2412613881 in words is "two billion, four hundred twelve million, six hundred thirteen thousand, eight hundred eighty-one".