2640270827 has 8 divisors (see below), whose sum is σ = 2757591600. Its totient is φ = 2525369184.

The previous prime is 2640270803. The next prime is 2640270859. The reversal of 2640270827 is 7280720462.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640270827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2640270427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602552 + ... + 606917.

It is an arithmetic number, because the mean of its divisors is an integer number (344698950).

Almost surely, 2^2640270827 is an apocalyptic number.

2640270827 is a deficient number, since it is larger than the sum of its proper divisors (117320773).

2640270827 is a wasteful number, since it uses less digits than its factorization.

2640270827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209565.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 2640270827 is about 51383.5657287425. The cubic root of 2640270827 is about 1382.1319052244.

The spelling of 2640270827 in words is "two billion, six hundred forty million, two hundred seventy thousand, eight hundred twenty-seven".