128023702418 has 8 divisors (see below), whose sum is σ = 194349235248. Its totient is φ = 63240624004.

The previous prime is 128023702409. The next prime is 128023702421. The reversal of 128023702418 is 814207320821.

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, 385613396 + ... + 385613727.

It is an arithmetic number, because the mean of its divisors is an integer number (24293654406).

Almost surely, 2^128023702418 is an apocalyptic number.

128023702418 is a deficient number, since it is larger than the sum of its proper divisors (66325532830).

128023702418 is an equidigital number, since it uses as much as digits as its factorization.

128023702418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771227208.

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 128023702418 in words is "one hundred twenty-eight billion, twenty-three million, seven hundred two thousand, four hundred eighteen".