128870365374 has 24 divisors (see below), whose sum is σ = 279227828880. Its totient is φ = 42955449408.

The previous prime is 128870365373. The next prime is 128870365381. The reversal of 128870365374 is 473563078821.

It is a happy number.

128870365374 is a `hidden beast` number, since 1 + 2 + 8 + 8 + 70 + 36 + 537 + 4 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 128870365374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128870365373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606934 + ... + 791270.

It is an arithmetic number, because the mean of its divisors is an integer number (11634492870).

Almost surely, 2^128870365374 is an apocalyptic number.

128870365374 is an abundant number, since it is smaller than the sum of its proper divisors (150357463506).

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

128870365374 is a wasteful number, since it uses less digits than its factorization.

128870365374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223184 (or 223181 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 128870365374 in words is "one hundred twenty-eight billion, eight hundred seventy million, three hundred sixty-five thousand, three hundred seventy-four".