27319766457 has 16 divisors (see below), whose sum is σ = 36592795008. Its totient is φ = 18130064640.

The previous prime is 27319766449. The next prime is 27319766471. The reversal of 27319766457 is 75466791372.

It is not a de Polignac number, because 27319766457 - 2³ = 27319766449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27319766397 and 27319766406.

It is not an unprimeable number, because it can be changed into a prime (27319766057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1077073 + ... + 1102145.

It is an arithmetic number, because the mean of its divisors is an integer number (2287049688).

Almost surely, 2^27319766457 is an apocalyptic number.

It is an amenable number.

27319766457 is a deficient number, since it is larger than the sum of its proper divisors (9273028551).

27319766457 is a wasteful number, since it uses less digits than its factorization.

27319766457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26720.

The product of its digits is 13335840, while the sum is 57.

The spelling of 27319766457 in words is "twenty-seven billion, three hundred nineteen million, seven hundred sixty-six thousand, four hundred fifty-seven".