1912030959891 has 48 divisors (see below), whose sum is σ = 2888530813952. Its totient is φ = 1117192003200.

The previous prime is 1912030959877. The next prime is 1912030959913. The reversal of 1912030959891 is 1989590302191.

It is not a de Polignac number, because 1912030959891 - 2¹⁰ = 1912030958867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1912030919891) 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 47 ways as a sum of consecutive naturals, for example, 3114576 + ... + 3677586.

Almost surely, 2^{1912030959891} is an apocalyptic number.

1912030959891 is a deficient number, since it is larger than the sum of its proper divisors (976499854061).

1912030959891 is a wasteful number, since it uses less digits than its factorization.

1912030959891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563164 (or 563111 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 57.

The spelling of 1912030959891 in words is "one trillion, nine hundred twelve billion, thirty million, nine hundred fifty-nine thousand, eight hundred ninety-one".