416626675781 has 2 divisors, whose sum is σ = 416626675782. Its totient is φ = 416626675780.

The previous prime is 416626675757. The next prime is 416626675783. The reversal of 416626675781 is 187576626614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289201950625 + 127424725156 = 537775^2 + 356966^2 .

It is a cyclic number.

It is not a de Polignac number, because 416626675781 - 2¹⁰ = 416626674757 is a prime.

It is a super-2 number, since 2×416626675781² (a number of 24 digits) contains 22 as substring.

Together with 416626675783, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 416626675781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416626675783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208313337890 + 208313337891.

It is an arithmetic number, because the mean of its divisors is an integer number (208313337891).

Almost surely, 2^416626675781 is an apocalyptic number.

It is an amenable number.

416626675781 is a deficient number, since it is larger than the sum of its proper divisors (1).

416626675781 is an equidigital number, since it uses as much as digits as its factorization.

416626675781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 59.

The spelling of 416626675781 in words is "four hundred sixteen billion, six hundred twenty-six million, six hundred seventy-five thousand, seven hundred eighty-one".