128699014798 has 16 divisors (see below), whose sum is σ = 199750937760. Its totient is φ = 62116381600.

The previous prime is 128699014789. The next prime is 128699014831. The reversal of 128699014798 is 897410996821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5463 + ... + 507373.

It is an arithmetic number, because the mean of its divisors is an integer number (12484433610).

Almost surely, 2^128699014798 is an apocalyptic number.

128699014798 is a deficient number, since it is larger than the sum of its proper divisors (71051922962).

128699014798 is a wasteful number, since it uses less digits than its factorization.

128699014798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506363.

The product of its (nonzero) digits is 15676416, while the sum is 64.

The spelling of 128699014798 in words is "one hundred twenty-eight billion, six hundred ninety-nine million, fourteen thousand, seven hundred ninety-eight".