128858285027320 has 32 divisors (see below), whose sum is σ = 294014678519520. Its totient is φ = 50817351840640.

The previous prime is 128858285027243. The next prime is 128858285027383. The reversal of 128858285027320 is 23720582858821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22686314947 + ... + 22686320626.

It is an arithmetic number, because the mean of its divisors is an integer number (9187958703735).

Almost surely, 2^{128858285027320} is an apocalyptic number.

128858285027320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128858285027320 is an abundant number, since it is smaller than the sum of its proper divisors (165156393492200).

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

128858285027320 is a wasteful number, since it uses less digits than its factorization.

128858285027320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45372635655 (or 45372635651 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 61.

The spelling of 128858285027320 in words is "one hundred twenty-eight trillion, eight hundred fifty-eight billion, two hundred eighty-five million, twenty-seven thousand, three hundred twenty".