27690923959 has 4 divisors (see below), whose sum is σ = 27691706320. Its totient is φ = 27690141600.

The previous prime is 27690923957. The next prime is 27690923983. The reversal of 27690923959 is 95932909672.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27690923959 - 2¹ = 27690923957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27690923897 and 27690923906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27690923957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335442 + ... + 409759.

It is an arithmetic number, because the mean of its divisors is an integer number (6922926580).

Almost surely, 2^27690923959 is an apocalyptic number.

27690923959 is a deficient number, since it is larger than the sum of its proper divisors (782361).

27690923959 is an equidigital number, since it uses as much as digits as its factorization.

27690923959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782360.

The product of its (nonzero) digits is 16533720, while the sum is 61.

The spelling of 27690923959 in words is "twenty-seven billion, six hundred ninety million, nine hundred twenty-three thousand, nine hundred fifty-nine".