427740886073 has 2 divisors, whose sum is σ = 427740886074. Its totient is φ = 427740886072.

The previous prime is 427740886061. The next prime is 427740886087. The reversal of 427740886073 is 370688047724.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427548592384 + 192293689 = 653872^2 + 13867^2 .

It is a cyclic number.

It is not a de Polignac number, because 427740886073 - 2¹⁸ = 427740623929 is a prime.

It is a super-2 number, since 2×427740886073² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (427740886973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213870443036 + 213870443037.

It is an arithmetic number, because the mean of its divisors is an integer number (213870443037).

Almost surely, 2^427740886073 is an apocalyptic number.

It is an amenable number.

427740886073 is a deficient number, since it is larger than the sum of its proper divisors (1).

427740886073 is an equidigital number, since it uses as much as digits as its factorization.

427740886073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12644352, while the sum is 56.

The spelling of 427740886073 in words is "four hundred twenty-seven billion, seven hundred forty million, eight hundred eighty-six thousand, seventy-three".