2785982251 has 8 divisors (see below), whose sum is σ = 3001106864. Its totient is φ = 2570974560.

The previous prime is 2785982207. The next prime is 2785982263. The reversal of 2785982251 is 1522895872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2785982251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2785982195 and 2785982204.

It is not an unprimeable number, because it can be changed into a prime (2785982291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23845 + ... + 78361.

It is an arithmetic number, because the mean of its divisors is an integer number (375138358).

Almost surely, 2^2785982251 is an apocalyptic number.

2785982251 is a deficient number, since it is larger than the sum of its proper divisors (215124613).

2785982251 is a wasteful number, since it uses less digits than its factorization.

2785982251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58461.

The product of its digits is 806400, while the sum is 49.

The square root of 2785982251 is about 52782.4047481734. The cubic root of 2785982251 is about 1407.1037326279.

The spelling of 2785982251 in words is "two billion, seven hundred eighty-five million, nine hundred eighty-two thousand, two hundred fifty-one".