2640479750 has 32 divisors (see below), whose sum is σ = 4949830080. Its totient is φ = 1054728000.

The previous prime is 2640479731. The next prime is 2640479753. The reversal of 2640479750 is 579740462.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640479753) 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 15 ways as a sum of consecutive naturals, for example, 183311 + ... + 197189.

It is an arithmetic number, because the mean of its divisors is an integer number (154682190).

Almost surely, 2^2640479750 is an apocalyptic number.

2640479750 is a deficient number, since it is larger than the sum of its proper divisors (2309350330).

2640479750 is a wasteful number, since it uses less digits than its factorization.

2640479750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14657 (or 14647 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 2640479750 is about 51385.5986634388. The cubic root of 2640479750 is about 1382.1683600109.

The spelling of 2640479750 in words is "two billion, six hundred forty million, four hundred seventy-nine thousand, seven hundred fifty".