128194492299 has 16 divisors (see below), whose sum is σ = 172992957984. Its totient is φ = 84433184000.

The previous prime is 128194492291. The next prime is 128194492339. The reversal of 128194492299 is 992294491821.

It is a cyclic number.

It is not a de Polignac number, because 128194492299 - 2³ = 128194492291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128194492291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319194 + ... + 598559.

It is an arithmetic number, because the mean of its divisors is an integer number (10812059874).

Almost surely, 2^128194492299 is an apocalyptic number.

128194492299 is a deficient number, since it is larger than the sum of its proper divisors (44798465685).

128194492299 is a wasteful number, since it uses less digits than its factorization.

128194492299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918318.

The product of its digits is 6718464, while the sum is 60.

The spelling of 128194492299 in words is "one hundred twenty-eight billion, one hundred ninety-four million, four hundred ninety-two thousand, two hundred ninety-nine".