27780583493 has 8 divisors (see below), whose sum is σ = 29922586848. Its totient is φ = 25639299504.

The previous prime is 27780583459. The next prime is 27780583529. The reversal of 27780583493 is 39438508772.

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

It is not a de Polignac number, because 27780583493 - 2⁶ = 27780583429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27780583093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98255 + ... + 255372.

It is an arithmetic number, because the mean of its divisors is an integer number (3740323356).

Almost surely, 2^27780583493 is an apocalyptic number.

It is an amenable number.

27780583493 is a deficient number, since it is larger than the sum of its proper divisors (2142003355).

27780583493 is a wasteful number, since it uses less digits than its factorization.

27780583493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359683.

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 27780583493 in words is "twenty-seven billion, seven hundred eighty million, five hundred eighty-three thousand, four hundred ninety-three".