2821866965 has 8 divisors (see below), whose sum is σ = 3429104640. Its totient is φ = 2228917392.

The previous prime is 2821866937. The next prime is 2821866973. The reversal of 2821866965 is 5696681282.

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 2821866965 - 2¹⁰ = 2821865941 is a prime.

It is a super-2 number, since 2×2821866965² = 15925866336316622450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3571589 + ... + 3572378.

It is an arithmetic number, because the mean of its divisors is an integer number (428638080).

Almost surely, 2^2821866965 is an apocalyptic number.

It is an amenable number.

2821866965 is a deficient number, since it is larger than the sum of its proper divisors (607237675).

2821866965 is an equidigital number, since it uses as much as digits as its factorization.

2821866965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144051.

The product of its digits is 2488320, while the sum is 53.

The square root of 2821866965 is about 53121.2477733722. The cubic root of 2821866965 is about 1413.1193560236.

The spelling of 2821866965 in words is "two billion, eight hundred twenty-one million, eight hundred sixty-six thousand, nine hundred sixty-five".