128642711401 has 8 divisors (see below), whose sum is σ = 130833685440. Its totient is φ = 126452090448.

The previous prime is 128642711383. The next prime is 128642711419. The reversal of 128642711401 is 104117246821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (128642711383) and next prime (128642711419).

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 128642711401 - 2¹³ = 128642703209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128642111401) 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, 707095 + ... + 870211.

It is an arithmetic number, because the mean of its divisors is an integer number (16354210680).

Almost surely, 2^128642711401 is an apocalyptic number.

It is an amenable number.

128642711401 is a deficient number, since it is larger than the sum of its proper divisors (2190974039).

128642711401 is a wasteful number, since it uses less digits than its factorization.

128642711401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176543.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 128642711401 in words is "one hundred twenty-eight billion, six hundred forty-two million, seven hundred eleven thousand, four hundred one".