18905572004 has 48 divisors (see below), whose sum is σ = 37486411200. Its totient is φ = 8263920000.

The previous prime is 18905572003. The next prime is 18905572013. The reversal of 18905572004 is 40027550981.

It is not an unprimeable number, because it can be changed into a prime (18905572001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290762 + ... + 349790.

It is an arithmetic number, because the mean of its divisors is an integer number (780966900).

Almost surely, 2^18905572004 is an apocalyptic number.

It is an amenable number.

18905572004 is a deficient number, since it is larger than the sum of its proper divisors (18580839196).

18905572004 is a wasteful number, since it uses less digits than its factorization.

18905572004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59324 (or 59322 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 18905572004 in words is "eighteen billion, nine hundred five million, five hundred seventy-two thousand, four".