2640869835 has 8 divisors (see below), whose sum is σ = 4225391760. Its totient is φ = 1408463904.

The previous prime is 2640869773. The next prime is 2640869863. The reversal of 2640869835 is 5389680462.

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

It is not a de Polignac number, because 2640869835 - 2¹¹ = 2640867787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88028980 + ... + 88029009.

It is an arithmetic number, because the mean of its divisors is an integer number (528173970).

Almost surely, 2^2640869835 is an apocalyptic number.

2640869835 is a deficient number, since it is larger than the sum of its proper divisors (1584521925).

2640869835 is a wasteful number, since it uses less digits than its factorization.

2640869835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176057997.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The square root of 2640869835 is about 51389.3941879061. The cubic root of 2640869835 is about 1382.2364204453.

The spelling of 2640869835 in words is "two billion, six hundred forty million, eight hundred sixty-nine thousand, eight hundred thirty-five".