819750012 has 24 divisors (see below), whose sum is σ = 1945171200. Its totient is φ = 268618416.

The previous prime is 819749999. The next prime is 819750017. The reversal of 819750012 is 210057918.

819750012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819750017) 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, 578212 + ... + 579627.

It is an arithmetic number, because the mean of its divisors is an integer number (81048800).

Almost surely, 2^819750012 is an apocalyptic number.

It is an amenable number.

819750012 is an abundant number, since it is smaller than the sum of its proper divisors (1125421188).

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

819750012 is a wasteful number, since it uses less digits than its factorization.

819750012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157905 (or 1157903 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 819750012 is about 28631.2768140019. The cubic root of 819750012 is about 935.8950362610.

The spelling of 819750012 in words is "eight hundred nineteen million, seven hundred fifty thousand, twelve".