2640526049 has 8 divisors (see below), whose sum is σ = 3029220480. Its totient is φ = 2254700736.

The previous prime is 2640526043. The next prime is 2640526051. The reversal of 2640526049 is 9406250462.

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

It is a cyclic number.

It is not a de Polignac number, because 2640526049 - 2⁴ = 2640526033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2640526043) 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, 715304 + ... + 718985.

It is an arithmetic number, because the mean of its divisors is an integer number (378652560).

Almost surely, 2^2640526049 is an apocalyptic number.

It is an amenable number.

2640526049 is a deficient number, since it is larger than the sum of its proper divisors (388694431).

2640526049 is a wasteful number, since it uses less digits than its factorization.

2640526049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434559.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2640526049 is about 51386.0491670648. The cubic root of 2640526049 is about 1382.1764384215.

The spelling of 2640526049 in words is "two billion, six hundred forty million, five hundred twenty-six thousand, forty-nine".