18825286780 has 24 divisors (see below), whose sum is σ = 40896313920. Its totient is φ = 7270455360.

The previous prime is 18825286771. The next prime is 18825286841. The reversal of 18825286780 is 8768252881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16228116 + ... + 16229275.

It is an arithmetic number, because the mean of its divisors is an integer number (1704013080).

Almost surely, 2^18825286780 is an apocalyptic number.

18825286780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18825286780 is an abundant number, since it is smaller than the sum of its proper divisors (22071027140).

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

18825286780 is a wasteful number, since it uses less digits than its factorization.

18825286780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32457429 (or 32457427 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 55.

The spelling of 18825286780 in words is "eighteen billion, eight hundred twenty-five million, two hundred eighty-six thousand, seven hundred eighty".