27458429639 has 2 divisors, whose sum is σ = 27458429640. Its totient is φ = 27458429638.

The previous prime is 27458429627. The next prime is 27458429683. The reversal of 27458429639 is 93692485472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27458429639 - 2¹² = 27458425543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27458479639) 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 as a sum of consecutive naturals, namely, 13729214819 + 13729214820.

It is an arithmetic number, because the mean of its divisors is an integer number (13729214820).

Almost surely, 2^27458429639 is an apocalyptic number.

27458429639 is a deficient number, since it is larger than the sum of its proper divisors (1).

27458429639 is an equidigital number, since it uses as much as digits as its factorization.

27458429639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 59.

The spelling of 27458429639 in words is "twenty-seven billion, four hundred fifty-eight million, four hundred twenty-nine thousand, six hundred thirty-nine".