1912133650 has 48 divisors (see below), whose sum is σ = 4303760256. Its totient is φ = 617022720.

The previous prime is 1912133621. The next prime is 1912133653. The reversal of 1912133650 is 563312191.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1912133653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154734 + ... + 166633.

It is an arithmetic number, because the mean of its divisors is an integer number (89661672).

Almost surely, 2^1912133650 is an apocalyptic number.

1912133650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1912133650 is an abundant number, since it is smaller than the sum of its proper divisors (2391626606).

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

1912133650 is a wasteful number, since it uses less digits than its factorization.

1912133650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321403 (or 321398 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1912133650 is about 43727.9504436236. The cubic root of 1912133650 is about 1241.1932776946.

The spelling of 1912133650 in words is "one billion, nine hundred twelve million, one hundred thirty-three thousand, six hundred fifty".