18255408042 has 16 divisors (see below), whose sum is σ = 36752611392. Its totient is φ = 6044836800.

The previous prime is 18255408023. The next prime is 18255408049. The reversal of 18255408042 is 24080455281.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18255408049) 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, 10073823 + ... + 10075634.

It is an arithmetic number, because the mean of its divisors is an integer number (2297038212).

Almost surely, 2^18255408042 is an apocalyptic number.

18255408042 is an abundant number, since it is smaller than the sum of its proper divisors (18497203350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18255408042 is a wasteful number, since it uses less digits than its factorization.

18255408042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20149613.

The product of its (nonzero) digits is 102400, while the sum is 39.

The spelling of 18255408042 in words is "eighteen billion, two hundred fifty-five million, four hundred eight thousand, forty-two".