27640435235 has 24 divisors (see below), whose sum is σ = 40853432160. Its totient is φ = 17838530304.

The previous prime is 27640435223. The next prime is 27640435241. The reversal of 27640435235 is 53253404672.

It is a happy number.

It is not a de Polignac number, because 27640435235 - 2³² = 23345467939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27640435192 and 27640435201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3314015 + ... + 3322344.

It is an arithmetic number, because the mean of its divisors is an integer number (1702226340).

Almost surely, 2^27640435235 is an apocalyptic number.

27640435235 is a deficient number, since it is larger than the sum of its proper divisors (13212996925).

27640435235 is a wasteful number, since it uses less digits than its factorization.

27640435235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636395 (or 6636388 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 41.

The spelling of 27640435235 in words is "twenty-seven billion, six hundred forty million, four hundred thirty-five thousand, two hundred thirty-five".