27531576379 has 2 divisors, whose sum is σ = 27531576380. Its totient is φ = 27531576378.

The previous prime is 27531576361. The next prime is 27531576407. The reversal of 27531576379 is 97367513572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27531576379 - 2¹⁹ = 27531052091 is a prime.

It is not a weakly prime, because it can be changed into another prime (27531576179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13765788189 + 13765788190.

It is an arithmetic number, because the mean of its divisors is an integer number (13765788190).

Almost surely, 2^27531576379 is an apocalyptic number.

27531576379 is a deficient number, since it is larger than the sum of its proper divisors (1).

27531576379 is an equidigital number, since it uses as much as digits as its factorization.

27531576379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8334900, while the sum is 55.

The spelling of 27531576379 in words is "twenty-seven billion, five hundred thirty-one million, five hundred seventy-six thousand, three hundred seventy-nine".