2051787983 has 8 divisors (see below), whose sum is σ = 2345198880. Its totient is φ = 1758451680.

The previous prime is 2051787977. The next prime is 2051788003. The reversal of 2051787983 is 3897871502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2051787983 - 2¹⁶ = 2051722447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051787943) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 65813 + ... + 91841.

It is an arithmetic number, because the mean of its divisors is an integer number (293149860).

Almost surely, 2^2051787983 is an apocalyptic number.

2051787983 is a deficient number, since it is larger than the sum of its proper divisors (293410897).

2051787983 is a wasteful number, since it uses less digits than its factorization.

2051787983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37297.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 2051787983 is about 45296.6663563667. Note that the first 3 decimals coincide. The cubic root of 2051787983 is about 1270.7033083398.

The spelling of 2051787983 in words is "two billion, fifty-one million, seven hundred eighty-seven thousand, nine hundred eighty-three".