2650773816 has 64 divisors (see below), whose sum is σ = 7405927200. Its totient is φ = 878471424.

The previous prime is 2650773803. The next prime is 2650773833. The reversal of 2650773816 is 6183770562.

2650773816 is a `hidden beast` number, since 265 + 0 + 7 + 7 + 381 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1900 + ... + 72836.

Almost surely, 2^2650773816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2650773816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3702963600).

2650773816 is an abundant number, since it is smaller than the sum of its proper divisors (4755153384).

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

2650773816 is a wasteful number, since it uses less digits than its factorization.

2650773816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71125 (or 71115 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 2650773816 is about 51485.6661217469. Note that the first 3 decimals coincide. The cubic root of 2650773816 is about 1383.9621858647.

The spelling of 2650773816 in words is "two billion, six hundred fifty million, seven hundred seventy-three thousand, eight hundred sixteen".