18041920767 has 12 divisors (see below), whose sum is σ = 28065210264. Its totient is φ = 11102720400.

The previous prime is 18041920711. The next prime is 18041920807. The reversal of 18041920767 is 76702914081.

It is a happy number.

It is not a de Polignac number, because 18041920767 - 2²² = 18037726463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18041920367) 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, 77102109 + ... + 77102342.

It is an arithmetic number, because the mean of its divisors is an integer number (2338767522).

Almost surely, 2^18041920767 is an apocalyptic number.

18041920767 is a deficient number, since it is larger than the sum of its proper divisors (10023289497).

18041920767 is a wasteful number, since it uses less digits than its factorization.

18041920767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154204470 (or 154204467 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 18041920767 in words is "eighteen billion, forty-one million, nine hundred twenty thousand, seven hundred sixty-seven".