2786132879 has 4 divisors (see below), whose sum is σ = 2795034576. Its totient is φ = 2777231184.

The previous prime is 2786132813. The next prime is 2786132897. The reversal of 2786132879 is 9782316872.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2786132879 - 2²⁰ = 2785084303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2786132879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2786131879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4450379 + ... + 4451004.

It is an arithmetic number, because the mean of its divisors is an integer number (698758644).

Almost surely, 2^2786132879 is an apocalyptic number.

2786132879 is a deficient number, since it is larger than the sum of its proper divisors (8901697).

2786132879 is an equidigital number, since it uses as much as digits as its factorization.

2786132879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8901696.

The product of its digits is 2032128, while the sum is 53.

The square root of 2786132879 is about 52783.8316058999. The cubic root of 2786132879 is about 1407.1290911767.

The spelling of 2786132879 in words is "two billion, seven hundred eighty-six million, one hundred thirty-two thousand, eight hundred seventy-nine".