18880135002 has 48 divisors (see below), whose sum is σ = 42352128000. Its totient is φ = 6071399712.

The previous prime is 18880134991. The next prime is 18880135007. The reversal of 18880135002 is 20053108881.

It is not an unprimeable number, because it can be changed into a prime (18880135007) 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, 653499 + ... + 681777.

It is an arithmetic number, because the mean of its divisors is an integer number (882336000).

Almost surely, 2^18880135002 is an apocalyptic number.

18880135002 is an abundant number, since it is smaller than the sum of its proper divisors (23471992998).

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

18880135002 is a wasteful number, since it uses less digits than its factorization.

18880135002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29595 (or 29592 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 18880135002 in words is "eighteen billion, eight hundred eighty million, one hundred thirty-five thousand, two".