1850994864 has 30 divisors (see below), whose sum is σ = 5180215196. Its totient is φ = 616998240.

The previous prime is 1850994823. The next prime is 1850994889. The reversal of 1850994864 is 4684990581.

It is a self number, because there is not a number n which added to its sum of digits gives 1850994864.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6426922 + ... + 6427209.

Almost surely, 2^1850994864 is an apocalyptic number.

It is an amenable number.

1850994864 is an abundant number, since it is smaller than the sum of its proper divisors (3329220332).

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

1850994864 is a wasteful number, since it uses less digits than its factorization.

1850994864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12854145 (or 12854136 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 1850994864 is about 43023.1898398991. The cubic root of 1850994864 is about 1227.8210401038.

The spelling of 1850994864 in words is "one billion, eight hundred fifty million, nine hundred ninety-four thousand, eight hundred sixty-four".