18081183967 has 48 divisors (see below), whose sum is σ = 23274890496. Its totient is φ = 13645324800.

The previous prime is 18081183961. The next prime is 18081183977. The reversal of 18081183967 is 76938118081.

It is not a de Polignac number, because 18081183967 - 2¹⁹ = 18080659679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18081183961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21097803 + ... + 21098659.

It is an arithmetic number, because the mean of its divisors is an integer number (484893552).

Almost surely, 2^18081183967 is an apocalyptic number.

18081183967 is a deficient number, since it is larger than the sum of its proper divisors (5193706529).

18081183967 is a wasteful number, since it uses less digits than its factorization.

18081183967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 52.

The spelling of 18081183967 in words is "eighteen billion, eighty-one million, one hundred eighty-three thousand, nine hundred sixty-seven".