2640447735 has 16 divisors (see below), whose sum is σ = 4473229536. Its totient is φ = 1325401088.

The previous prime is 2640447713. The next prime is 2640447773. The reversal of 2640447735 is 5377440462.

2640447735 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2640447735 - 2⁸ = 2640447479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5177094 + ... + 5177603.

It is an arithmetic number, because the mean of its divisors is an integer number (279576846).

Almost surely, 2^2640447735 is an apocalyptic number.

2640447735 is a deficient number, since it is larger than the sum of its proper divisors (1832781801).

2640447735 is a wasteful number, since it uses less digits than its factorization.

2640447735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10354722.

The product of its (nonzero) digits is 564480, while the sum is 42.

The square root of 2640447735 is about 51385.2871452520. The cubic root of 2640447735 is about 1382.1627738671.

The spelling of 2640447735 in words is "two billion, six hundred forty million, four hundred forty-seven thousand, seven hundred thirty-five".