11312889789 has 16 divisors (see below), whose sum is σ = 15312257600. Its totient is φ = 7428018816.

The previous prime is 11312889761. The next prime is 11312889817. The reversal of 11312889789 is 98798821311.

It is an interprime number because it is at equal distance from previous prime (11312889761) and next prime (11312889817).

It is not a de Polignac number, because 11312889789 - 2⁹ = 11312889277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312885789) 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, 118842 + ... + 191700.

It is an arithmetic number, because the mean of its divisors is an integer number (957016100).

Almost surely, 2^11312889789 is an apocalyptic number.

It is an amenable number.

11312889789 is a deficient number, since it is larger than the sum of its proper divisors (3999367811).

11312889789 is an equidigital number, since it uses as much as digits as its factorization.

11312889789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73644.

The product of its digits is 1741824, while the sum is 57.

The spelling of 11312889789 in words is "eleven billion, three hundred twelve million, eight hundred eighty-nine thousand, seven hundred eighty-nine".