427111548691 has 2 divisors, whose sum is σ = 427111548692. Its totient is φ = 427111548690.

The previous prime is 427111548649. The next prime is 427111548701. The reversal of 427111548691 is 196845111724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427111548691 - 2²⁹ = 426574677779 is a prime.

It is not a weakly prime, because it can be changed into another prime (427111548091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213555774345 + 213555774346.

It is an arithmetic number, because the mean of its divisors is an integer number (213555774346).

Almost surely, 2^427111548691 is an apocalyptic number.

427111548691 is a deficient number, since it is larger than the sum of its proper divisors (1).

427111548691 is an equidigital number, since it uses as much as digits as its factorization.

427111548691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 49.

The spelling of 427111548691 in words is "four hundred twenty-seven billion, one hundred eleven million, five hundred forty-eight thousand, six hundred ninety-one".