1912768312 has 192 divisors, whose sum is σ = 4770360000. Its totient is φ = 713615616.

The previous prime is 1912768309. The next prime is 1912768337. The reversal of 1912768312 is 2138672191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44482963 + ... + 44483005.

It is an arithmetic number, because the mean of its divisors is an integer number (24845625).

Almost surely, 2^1912768312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912768312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2385180000).

1912768312 is an abundant number, since it is smaller than the sum of its proper divisors (2857591688).

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

1912768312 is a wasteful number, since it uses less digits than its factorization.

1912768312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 94 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 1912768312 is about 43735.2067789784. The cubic root of 1912768312 is about 1241.3305852289.

The spelling of 1912768312 in words is "one billion, nine hundred twelve million, seven hundred sixty-eight thousand, three hundred twelve".