128149648018 has 8 divisors (see below), whose sum is σ = 219685110912. Its totient is φ = 54921277716.

The previous prime is 128149648009. The next prime is 128149648027. The reversal of 128149648018 is 810846941821.

It is an interprime number because it is at equal distance from previous prime (128149648009) and next prime (128149648027).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4576773130 + ... + 4576773157.

It is an arithmetic number, because the mean of its divisors is an integer number (27460638864).

Almost surely, 2^128149648018 is an apocalyptic number.

128149648018 is a deficient number, since it is larger than the sum of its proper divisors (91535462894).

128149648018 is an equidigital number, since it uses as much as digits as its factorization.

128149648018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9153546296.

The product of its (nonzero) digits is 884736, while the sum is 52.

The spelling of 128149648018 in words is "one hundred twenty-eight billion, one hundred forty-nine million, six hundred forty-eight thousand, eighteen".