18578940700 has 36 divisors (see below), whose sum is σ = 40999641480. Its totient is φ = 7305615040.

The previous prime is 18578940659. The next prime is 18578940761. The reversal of 18578940700 is 704987581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1568587 + ... + 1580386.

It is an arithmetic number, because the mean of its divisors is an integer number (1138878930).

Almost surely, 2^18578940700 is an apocalyptic number.

18578940700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18578940700 is an abundant number, since it is smaller than the sum of its proper divisors (22420700780).

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

18578940700 is a wasteful number, since it uses less digits than its factorization.

18578940700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149046 (or 3149039 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 18578940700 in words is "eighteen billion, five hundred seventy-eight million, nine hundred forty thousand, seven hundred".