1890768612 has 12 divisors (see below), whose sum is σ = 4411793456. Its totient is φ = 630256200.

The previous prime is 1890768601. The next prime is 1890768619. The reversal of 1890768612 is 2168670981.

1890768612 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1890768619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78782014 + ... + 78782037.

Almost surely, 2^1890768612 is an apocalyptic number.

1890768612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1890768612 is an abundant number, since it is smaller than the sum of its proper divisors (2521024844).

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

1890768612 is a wasteful number, since it uses less digits than its factorization.

1890768612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157564058 (or 157564056 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 1890768612 is about 43482.9692178444. The cubic root of 1890768612 is about 1236.5531687802.

The spelling of 1890768612 in words is "one billion, eight hundred ninety million, seven hundred sixty-eight thousand, six hundred twelve".