18955100442 has 8 divisors (see below), whose sum is σ = 37910200896. Its totient is φ = 6318366812.

The previous prime is 18955100399. The next prime is 18955100467. The reversal of 18955100442 is 24400155981.

It is a sphenic number, since it is the product of 3 distinct primes.

18955100442 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 18955100442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1579591698 + ... + 1579591709.

It is an arithmetic number, because the mean of its divisors is an integer number (4738775112).

Almost surely, 2^18955100442 is an apocalyptic number.

18955100442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18955100442 is a wasteful number, since it uses less digits than its factorization.

18955100442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159183412.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 18955100442 in words is "eighteen billion, nine hundred fifty-five million, one hundred thousand, four hundred forty-two".