128101357657 has 8 divisors (see below), whose sum is σ = 157663209536. Its totient is φ = 101354920272.

The previous prime is 128101357649. The next prime is 128101357669. The reversal of 128101357657 is 756753101821.

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 128101357657 - 2³ = 128101357649 is a prime.

It is the 357913-rd Hogben number.

It is not an unprimeable number, because it can be changed into a prime (128101357457) by changing a digit.

It is a nontrivial repunit in base 357912.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703853523 + ... + 703853704.

It is an arithmetic number, because the mean of its divisors is an integer number (19707901192).

Almost surely, 2^128101357657 is an apocalyptic number.

It is an amenable number.

128101357657 is a deficient number, since it is larger than the sum of its proper divisors (29561851879).

128101357657 is a wasteful number, since it uses less digits than its factorization.

128101357657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407707247.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 128101357657 in words is "one hundred twenty-eight billion, one hundred one million, three hundred fifty-seven thousand, six hundred fifty-seven".