128862308751 has 16 divisors (see below), whose sum is σ = 187541059968. Its totient is φ = 78054629600.

The previous prime is 128862308689. The next prime is 128862308759. The reversal of 128862308751 is 157803268821.

It is a cyclic number.

It is not a de Polignac number, because 128862308751 - 2²² = 128858114447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128862308694 and 128862308703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128862308759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033620 + ... + 1151561.

It is an arithmetic number, because the mean of its divisors is an integer number (11721316248).

Almost surely, 2^128862308751 is an apocalyptic number.

128862308751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

128862308751 is a deficient number, since it is larger than the sum of its proper divisors (58678751217).

128862308751 is a wasteful number, since it uses less digits than its factorization.

128862308751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186982.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 128862308751 in words is "one hundred twenty-eight billion, eight hundred sixty-two million, three hundred eight thousand, seven hundred fifty-one".