2766805890 has 16 divisors (see below), whose sum is σ = 6640334208. Its totient is φ = 737814896.

The previous prime is 2766805843. The next prime is 2766805891. The reversal of 2766805890 is 985086672.

It is not an unprimeable number, because it can be changed into a prime (2766805891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46113402 + ... + 46113461.

It is an arithmetic number, because the mean of its divisors is an integer number (415020888).

Almost surely, 2^2766805890 is an apocalyptic number.

2766805890 is an abundant number, since it is smaller than the sum of its proper divisors (3873528318).

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

2766805890 is a wasteful number, since it uses less digits than its factorization.

2766805890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92226873.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 2766805890 is about 52600.4362149213. The cubic root of 2766805890 is about 1403.8678569393.

The spelling of 2766805890 in words is "two billion, seven hundred sixty-six million, eight hundred five thousand, eight hundred ninety".