18428760840 has 96 divisors (see below), whose sum is σ = 64312634880. Its totient is φ = 4212286848.

The previous prime is 18428760799. The next prime is 18428760841. The reversal of 18428760840 is 4806782481.

It is a self number, because there is not a number n which added to its sum of digits gives 18428760840.

It is not an unprimeable number, because it can be changed into a prime (18428760841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1561192 + ... + 1572951.

It is an arithmetic number, because the mean of its divisors is an integer number (669923280).

Almost surely, 2^18428760840 is an apocalyptic number.

18428760840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18428760840 is an abundant number, since it is smaller than the sum of its proper divisors (45883874040).

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

18428760840 is a wasteful number, since it uses less digits than its factorization.

18428760840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134171 (or 3134160 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 18428760840 in words is "eighteen billion, four hundred twenty-eight million, seven hundred sixty thousand, eight hundred forty".