2012312886891 has 8 divisors (see below), whose sum is σ = 2715410160960. Its totient is φ = 1325378768712.

The previous prime is 2012312886877. The next prime is 2012312886953. The reversal of 2012312886891 is 1986882132102.

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

It is not a de Polignac number, because 2012312886891 - 2⁷ = 2012312886763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012312886821) 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, 4040788681 + ... + 4040789178.

It is an arithmetic number, because the mean of its divisors is an integer number (339426270120).

Almost surely, 2^{2012312886891} is an apocalyptic number.

2012312886891 is a deficient number, since it is larger than the sum of its proper divisors (703097274069).

2012312886891 is an equidigital number, since it uses as much as digits as its factorization.

2012312886891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081577945.

The product of its (nonzero) digits is 663552, while the sum is 51.

The spelling of 2012312886891 in words is "two trillion, twelve billion, three hundred twelve million, eight hundred eighty-six thousand, eight hundred ninety-one".