109867127787 has 16 divisors (see below), whose sum is σ = 162785880480. Its totient is φ = 73235857536.

The previous prime is 109867127719. The next prime is 109867127813. The reversal of 109867127787 is 787721768901.

It is not a de Polignac number, because 109867127787 - 2⁷ = 109867127659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109867127717) 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, 16698 + ... + 469055.

It is an arithmetic number, because the mean of its divisors is an integer number (10174117530).

Almost surely, 2^109867127787 is an apocalyptic number.

109867127787 is a deficient number, since it is larger than the sum of its proper divisors (52918752693).

109867127787 is an equidigital number, since it uses as much as digits as its factorization.

109867127787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494139 (or 494133 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 63.

The spelling of 109867127787 in words is "one hundred nine billion, eight hundred sixty-seven million, one hundred twenty-seven thousand, seven hundred eighty-seven".