18837661010 has 32 divisors (see below), whose sum is σ = 39408577920. Its totient is φ = 6349156992.

The previous prime is 18837660983. The next prime is 18837661133. The reversal of 18837661010 is 1016673881.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2276459 + ... + 2284718.

It is an arithmetic number, because the mean of its divisors is an integer number (1231518060).

Almost surely, 2^18837661010 is an apocalyptic number.

18837661010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18837661010 is an abundant number, since it is smaller than the sum of its proper divisors (20570916910).

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

18837661010 is a wasteful number, since it uses less digits than its factorization.

18837661010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561250.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 18837661010 in words is "eighteen billion, eight hundred thirty-seven million, six hundred sixty-one thousand, ten".