128942387201 has 8 divisors (see below), whose sum is σ = 130585089600. Its totient is φ = 127310049328.

The previous prime is 128942387179. The next prime is 128942387261. The reversal of 128942387201 is 102783249821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128942387201 - 2³⁴ = 111762518017 is a prime.

It is a super-2 number, since 2×128942387201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128942387261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2566091 + ... + 2615856.

It is an arithmetic number, because the mean of its divisors is an integer number (16323136200).

Almost surely, 2^128942387201 is an apocalyptic number.

It is an amenable number.

128942387201 is a deficient number, since it is larger than the sum of its proper divisors (1642702399).

128942387201 is a wasteful number, since it uses less digits than its factorization.

128942387201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182263.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 128942387201 in words is "one hundred twenty-eight billion, nine hundred forty-two million, three hundred eighty-seven thousand, two hundred one".