18050420794 has 16 divisors (see below), whose sum is σ = 30945976128. Its totient is φ = 7735295232.

The previous prime is 18050420789. The next prime is 18050420797. The reversal of 18050420794 is 49702405081.

It is not an unprimeable number, because it can be changed into a prime (18050420797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170842 + ... + 255514.

It is an arithmetic number, because the mean of its divisors is an integer number (1934123508).

Almost surely, 2^18050420794 is an apocalyptic number.

18050420794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18050420794 is a deficient number, since it is larger than the sum of its proper divisors (12895555334).

18050420794 is a wasteful number, since it uses less digits than its factorization.

18050420794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99909.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 18050420794 in words is "eighteen billion, fifty million, four hundred twenty thousand, seven hundred ninety-four".