2823850661 has 12 divisors (see below), whose sum is σ = 2982429900. Its totient is φ = 2673312768.

The previous prime is 2823850649. The next prime is 2823850703. The reversal of 2823850661 is 1660583282.

It can be written as a sum of positive squares in 2 ways, for example, as 1156680100 + 1667170561 = 34010^2 + 40831^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2823850661 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 (2823850061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 969275 + ... + 972183.

It is an arithmetic number, because the mean of its divisors is an integer number (248535825).

Almost surely, 2^2823850661 is an apocalyptic number.

It is an amenable number.

2823850661 is a deficient number, since it is larger than the sum of its proper divisors (158579239).

2823850661 is a wasteful number, since it uses less digits than its factorization.

2823850661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636 (or 5617 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 2823850661 is about 53139.9158919169. The cubic root of 2823850661 is about 1413.4504066658.

The spelling of 2823850661 in words is "two billion, eight hundred twenty-three million, eight hundred fifty thousand, six hundred sixty-one".