2687249033 has 12 divisors (see below), whose sum is σ = 3134385540. Its totient is φ = 2297165472.

The previous prime is 2687249023. The next prime is 2687249077. The reversal of 2687249033 is 3309427862.

It can be written as a sum of positive squares in 2 ways, for example, as 1942341184 + 744907849 = 44072^2 + 27293^2 .

It is not a de Polignac number, because 2687249033 - 2²⁸ = 2418813577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2687249003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55238 + ... + 91791.

It is an arithmetic number, because the mean of its divisors is an integer number (261198795).

Almost surely, 2^2687249033 is an apocalyptic number.

It is an amenable number.

2687249033 is a deficient number, since it is larger than the sum of its proper divisors (447136507).

2687249033 is a wasteful number, since it uses less digits than its factorization.

2687249033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147416 (or 147409 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 2687249033 is about 51838.6827861203. The cubic root of 2687249033 is about 1390.2811626950.

The spelling of 2687249033 in words is "two billion, six hundred eighty-seven million, two hundred forty-nine thousand, thirty-three".