27802457387 has 2 divisors, whose sum is σ = 27802457388. Its totient is φ = 27802457386.

The previous prime is 27802457377. The next prime is 27802457393. The reversal of 27802457387 is 78375420872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27802457387 - 2²⁶ = 27735348523 is a prime.

It is not a weakly prime, because it can be changed into another prime (27802457327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13901228693 + 13901228694.

It is an arithmetic number, because the mean of its divisors is an integer number (13901228694).

Almost surely, 2^27802457387 is an apocalyptic number.

27802457387 is a deficient number, since it is larger than the sum of its proper divisors (1).

27802457387 is an equidigital number, since it uses as much as digits as its factorization.

27802457387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5268480, while the sum is 53.

The spelling of 27802457387 in words is "twenty-seven billion, eight hundred two million, four hundred fifty-seven thousand, three hundred eighty-seven".