427338086779 has 2 divisors, whose sum is σ = 427338086780. Its totient is φ = 427338086778.

The previous prime is 427338086761. The next prime is 427338086797. The reversal of 427338086779 is 977680833724.

Together with next prime (427338086797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (427338086761) and next prime (427338086797).

It is a cyclic number.

It is not a de Polignac number, because 427338086779 - 2¹¹ = 427338084731 is a prime.

It is a super-2 number, since 2×427338086779² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 427338086779.

It is not a weakly prime, because it can be changed into another prime (427338086759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213669043389 + 213669043390.

It is an arithmetic number, because the mean of its divisors is an integer number (213669043390).

Almost surely, 2^427338086779 is an apocalyptic number.

427338086779 is a deficient number, since it is larger than the sum of its proper divisors (1).

427338086779 is an equidigital number, since it uses as much as digits as its factorization.

427338086779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85349376, while the sum is 64.

The spelling of 427338086779 in words is "four hundred twenty-seven billion, three hundred thirty-eight million, eighty-six thousand, seven hundred seventy-nine".