1213794312192 has 1792 divisors, whose sum is σ = 4912069017600. Its totient is φ = 289043251200.

The previous prime is 1213794312113. The next prime is 1213794312209. The reversal of 1213794312192 is 2912134973121.

1213794312192 is a `hidden beast` number, since 1 + 21 + 3 + 7 + 9 + 431 + 2 + 192 = 666.

It is a tau number, because it is divible by the number of its divisors (1792).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 39154655217 + ... + 39154655247.

Almost surely, 2^{1213794312192} is an apocalyptic number.

1213794312192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213794312192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2456034508800).

1213794312192 is an abundant number, since it is smaller than the sum of its proper divisors (3698274705408).

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

1213794312192 is an equidigital number, since it uses as much as digits as its factorization.

1213794312192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 73 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The spelling of 1213794312192 in words is "one trillion, two hundred thirteen billion, seven hundred ninety-four million, three hundred twelve thousand, one hundred ninety-two".