128851674 has 24 divisors (see below), whose sum is σ = 299778048. Its totient is φ = 36814680.

The previous prime is 128851637. The next prime is 128851691. The reversal of 128851674 is 476158821.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218842 + ... + 219429.

It is an arithmetic number, because the mean of its divisors is an integer number (12490752).

Almost surely, 2^128851674 is an apocalyptic number.

128851674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128851674 is an abundant number, since it is smaller than the sum of its proper divisors (170926374).

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

128851674 is a wasteful number, since it uses less digits than its factorization.

128851674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438290 (or 438283 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 128851674 is about 11351.2851254825. The cubic root of 128851674 is about 505.0837021014.

The spelling of 128851674 in words is "one hundred twenty-eight million, eight hundred fifty-one thousand, six hundred seventy-four".