128788752790 has 32 divisors (see below), whose sum is σ = 244059222240. Its totient is φ = 48796473600.

The previous prime is 128788752787. The next prime is 128788752791. The reversal of 128788752790 is 97257887821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128788752791) 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, 1238410 + ... + 1338370.

It is an arithmetic number, because the mean of its divisors is an integer number (7626850695).

Almost surely, 2^128788752790 is an apocalyptic number.

128788752790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128788752790 is a deficient number, since it is larger than the sum of its proper divisors (115270469450).

128788752790 is a wasteful number, since it uses less digits than its factorization.

128788752790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106768.

The product of its (nonzero) digits is 31610880, while the sum is 64.

The spelling of 128788752790 in words is "one hundred twenty-eight billion, seven hundred eighty-eight million, seven hundred fifty-two thousand, seven hundred ninety".