27790659965 has 8 divisors (see below), whose sum is σ = 33914026080. Its totient is φ = 21855705232.

The previous prime is 27790659959. The next prime is 27790659983. The reversal of 27790659965 is 56995609772.

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

It is a cyclic number.

It is not a de Polignac number, because 27790659965 - 2⁶ = 27790659901 is a prime.

It is a congruent number.

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, 47102519 + ... + 47103108.

It is an arithmetic number, because the mean of its divisors is an integer number (4239253260).

Almost surely, 2^27790659965 is an apocalyptic number.

It is an amenable number.

27790659965 is a deficient number, since it is larger than the sum of its proper divisors (6123366115).

27790659965 is an equidigital number, since it uses as much as digits as its factorization.

27790659965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94205691.

The product of its (nonzero) digits is 64297800, while the sum is 65.

The spelling of 27790659965 in words is "twenty-seven billion, seven hundred ninety million, six hundred fifty-nine thousand, nine hundred sixty-five".