128174851854 has 48 divisors (see below), whose sum is σ = 319884484608. Its totient is φ = 36333024336.

The previous prime is 128174851853. The next prime is 128174851877. The reversal of 128174851854 is 458158471821.

128174851854 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 74 + 8 + 518 + 54 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 128174851854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128174851853) 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, 3988962 + ... + 4020965.

It is an arithmetic number, because the mean of its divisors is an integer number (6664260096).

Almost surely, 2^128174851854 is an apocalyptic number.

128174851854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128174851854 is an abundant number, since it is smaller than the sum of its proper divisors (191709632754).

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

128174851854 is a wasteful number, since it uses less digits than its factorization.

128174851854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010069 (or 8010066 counting only the distinct ones).

The product of its digits is 2867200, while the sum is 54.

The spelling of 128174851854 in words is "one hundred twenty-eight billion, one hundred seventy-four million, eight hundred fifty-one thousand, eight hundred fifty-four".