27531157794419 has 2 divisors, whose sum is σ = 27531157794420. Its totient is φ = 27531157794418.

The previous prime is 27531157794401. The next prime is 27531157794431. The reversal of 27531157794419 is 91449775113572.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27531157794419 is a prime.

It is a super-2 number, since 2×27531157794419² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27531157794319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13765578897209 + 13765578897210.

It is an arithmetic number, because the mean of its divisors is an integer number (13765578897210).

Almost surely, 2^{27531157794419} is an apocalyptic number.

27531157794419 is a deficient number, since it is larger than the sum of its proper divisors (1).

27531157794419 is an equidigital number, since it uses as much as digits as its factorization.

27531157794419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66679200, while the sum is 65.

The spelling of 27531157794419 in words is "twenty-seven trillion, five hundred thirty-one billion, one hundred fifty-seven million, seven hundred ninety-four thousand, four hundred nineteen".