18485825450 has 96 divisors (see below), whose sum is σ = 35997696000. Its totient is φ = 7054891200.

The previous prime is 18485825441. The next prime is 18485825473. The reversal of 18485825450 is 5452858481.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51492371 + ... + 51492729.

It is an arithmetic number, because the mean of its divisors is an integer number (374976000).

Almost surely, 2^18485825450 is an apocalyptic number.

18485825450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18485825450 is a deficient number, since it is larger than the sum of its proper divisors (17511870550).

18485825450 is a wasteful number, since it uses less digits than its factorization.

18485825450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 2048000, while the sum is 50.

The spelling of 18485825450 in words is "eighteen billion, four hundred eighty-five million, eight hundred twenty-five thousand, four hundred fifty".