128000785637683 has 8 divisors (see below), whose sum is σ = 146288338910720. Its totient is φ = 109713664053000.

The previous prime is 128000785637639. The next prime is 128000785637689. The reversal of 128000785637683 is 386736587000821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128000785637683 - 2¹⁷ = 128000785506611 is a prime.

It is a super-2 number, since 2×128000785637683² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128000785637689) by changing a digit.

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, 107286453 + ... + 108472966.

It is an arithmetic number, because the mean of its divisors is an integer number (18286042363840).

Almost surely, 2^{128000785637683} is an apocalyptic number.

128000785637683 is a deficient number, since it is larger than the sum of its proper divisors (18287553273037).

128000785637683 is an equidigital number, since it uses as much as digits as its factorization.

128000785637683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215844177.

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 128000785637683 in words is "one hundred twenty-eight trillion, seven hundred eighty-five million, six hundred thirty-seven thousand, six hundred eighty-three".