128022663890 has 32 divisors (see below), whose sum is σ = 252046411776. Its totient is φ = 46432130560.

The previous prime is 128022663887. The next prime is 128022663919. The reversal of 128022663890 is 98366220821.

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 15 ways as a sum of consecutive naturals, for example, 1477247 + ... + 1561506.

It is an arithmetic number, because the mean of its divisors is an integer number (7876450368).

Almost surely, 2^128022663890 is an apocalyptic number.

128022663890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128022663890 is a deficient number, since it is larger than the sum of its proper divisors (124023747886).

128022663890 is a wasteful number, since it uses less digits than its factorization.

128022663890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039154.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 128022663890 in words is "one hundred twenty-eight billion, twenty-two million, six hundred sixty-three thousand, eight hundred ninety".