1912579957812 has 24 divisors (see below), whose sum is σ = 4616572312800. Its totient is φ = 615542974816.

The previous prime is 1912579957811. The next prime is 1912579957831. The reversal of 1912579957812 is 2187599752191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912579957811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2747959362 + ... + 2747960057.

It is an arithmetic number, because the mean of its divisors is an integer number (192357179700).

Almost surely, 2^{1912579957812} is an apocalyptic number.

1912579957812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1912579957812 is an abundant number, since it is smaller than the sum of its proper divisors (2703992354988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1912579957812 is a wasteful number, since it uses less digits than its factorization.

1912579957812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495919455 (or 5495919453 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 66.

The spelling of 1912579957812 in words is "one trillion, nine hundred twelve billion, five hundred seventy-nine million, nine hundred fifty-seven thousand, eight hundred twelve".