128650242398 has 8 divisors (see below), whose sum is σ = 194778871992. Its totient is φ = 63723951736.

The previous prime is 128650242373. The next prime is 128650242401. The reversal of 128650242398 is 893242056821.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300584465 + ... + 300584892.

It is an arithmetic number, because the mean of its divisors is an integer number (24347358999).

Almost surely, 2^128650242398 is an apocalyptic number.

128650242398 is a deficient number, since it is larger than the sum of its proper divisors (66128629594).

128650242398 is a wasteful number, since it uses less digits than its factorization.

128650242398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601169466.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 128650242398 in words is "one hundred twenty-eight billion, six hundred fifty million, two hundred forty-two thousand, three hundred ninety-eight".