2798505966 has 64 divisors (see below), whose sum is σ = 6130722816. Its totient is φ = 847795200.

The previous prime is 2798505961. The next prime is 2798505973. The reversal of 2798505966 is 6695058972.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798505961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2405701 + ... + 2406863.

It is an arithmetic number, because the mean of its divisors is an integer number (95792544).

Almost surely, 2^2798505966 is an apocalyptic number.

2798505966 is an abundant number, since it is smaller than the sum of its proper divisors (3332216850).

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

2798505966 is a wasteful number, since it uses less digits than its factorization.

2798505966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The square root of 2798505966 is about 52900.9070432634. The cubic root of 2798505966 is about 1409.2090136236.

The spelling of 2798505966 in words is "two billion, seven hundred ninety-eight million, five hundred five thousand, nine hundred sixty-six".