18907379480 has 32 divisors (see below), whose sum is σ = 46409023440. Its totient is φ = 6875410560.

The previous prime is 18907379441. The next prime is 18907379483. The reversal of 18907379480 is 8497370981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18907379483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21485219 + ... + 21486098.

Almost surely, 2^18907379480 is an apocalyptic number.

18907379480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18907379480 is an abundant number, since it is smaller than the sum of its proper divisors (27501643960).

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

18907379480 is a wasteful number, since it uses less digits than its factorization.

18907379480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42971339 (or 42971335 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 18907379480 in words is "eighteen billion, nine hundred seven million, three hundred seventy-nine thousand, four hundred eighty".