2839661669 has 16 divisors (see below), whose sum is σ = 3086536320. Its totient is φ = 2596950720.

The previous prime is 2839661633. The next prime is 2839661677. The reversal of 2839661669 is 9661669382.

It is not a de Polignac number, because 2839661669 - 2⁸ = 2839661413 is a prime.

It is a super-2 number, since 2×2839661669² = 16127356788775731122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2839691669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771704 + ... + 775374.

It is an arithmetic number, because the mean of its divisors is an integer number (192908520).

Almost surely, 2^2839661669 is an apocalyptic number.

It is an amenable number.

2839661669 is a deficient number, since it is larger than the sum of its proper divisors (246874651).

2839661669 is a wasteful number, since it uses less digits than its factorization.

2839661669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220.

The product of its digits is 5038848, while the sum is 56.

The square root of 2839661669 is about 53288.4759493082. The cubic root of 2839661669 is about 1416.0835127751.

The spelling of 2839661669 in words is "two billion, eight hundred thirty-nine million, six hundred sixty-one thousand, six hundred sixty-nine".