18290181412 has 24 divisors (see below), whose sum is σ = 33743324160. Its totient is φ = 8661785280.

The previous prime is 18290181409. The next prime is 18290181449. The reversal of 18290181412 is 21418109281.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1563337 + ... + 1574992.

It is an arithmetic number, because the mean of its divisors is an integer number (1405971840).

Almost surely, 2^18290181412 is an apocalyptic number.

It is an amenable number.

18290181412 is a deficient number, since it is larger than the sum of its proper divisors (15453142748).

18290181412 is a wasteful number, since it uses less digits than its factorization.

18290181412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138411 (or 3138409 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 37.

The spelling of 18290181412 in words is "eighteen billion, two hundred ninety million, one hundred eighty-one thousand, four hundred twelve".