1899995056 has 10 divisors (see below), whose sum is σ = 3681240452. Its totient is φ = 949997520.

The previous prime is 1899994979. The next prime is 1899995093. The reversal of 1899995056 is 6505999981.

It is a junction number, because it is equal to n+sod(n) for n = 1899994985 and 1899995003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59374830 + ... + 59374861.

Almost surely, 2^1899995056 is an apocalyptic number.

1899995056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1899995056 is a deficient number, since it is larger than the sum of its proper divisors (1781245396).

1899995056 is a wasteful number, since it uses less digits than its factorization.

1899995056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118749699 (or 118749693 counting only the distinct ones).

The product of its (nonzero) digits is 7873200, while the sum is 61.

The square root of 1899995056 is about 43588.9327238004. The cubic root of 1899995056 is about 1238.5612553394.

The spelling of 1899995056 in words is "one billion, eight hundred ninety-nine million, nine hundred ninety-five thousand, fifty-six".