2786242655 has 48 divisors (see below), whose sum is σ = 4072218624. Its totient is φ = 1821314880.

The previous prime is 2786242643. The next prime is 2786242691. The reversal of 2786242655 is 5562426872.

It is a happy number.

It is not a de Polignac number, because 2786242655 - 2¹⁸ = 2785980511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2157560 + ... + 2158850.

It is an arithmetic number, because the mean of its divisors is an integer number (84837888).

Almost surely, 2^2786242655 is an apocalyptic number.

2786242655 is a deficient number, since it is larger than the sum of its proper divisors (1285975969).

2786242655 is a wasteful number, since it uses less digits than its factorization.

2786242655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1709 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 47.

The square root of 2786242655 is about 52784.8714595385. The cubic root of 2786242655 is about 1407.1475716275.

The spelling of 2786242655 in words is "two billion, seven hundred eighty-six million, two hundred forty-two thousand, six hundred fifty-five".