18948947180 has 48 divisors (see below), whose sum is σ = 40394894400. Its totient is φ = 7465113600.

The previous prime is 18948947177. The next prime is 18948947197. The reversal of 18948947180 is 8174984981.

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, 1483220 + ... + 1495940.

It is an arithmetic number, because the mean of its divisors is an integer number (841560300).

Almost surely, 2^18948947180 is an apocalyptic number.

18948947180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18948947180 is an abundant number, since it is smaller than the sum of its proper divisors (21445947220).

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

18948947180 is a wasteful number, since it uses less digits than its factorization.

18948947180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13850 (or 13848 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 59.

The spelling of 18948947180 in words is "eighteen billion, nine hundred forty-eight million, nine hundred forty-seven thousand, one hundred eighty".