423402062257 has 2 divisors, whose sum is σ = 423402062258. Its totient is φ = 423402062256.

The previous prime is 423402062221. The next prime is 423402062261. The reversal of 423402062257 is 752260204324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397758523761 + 25643538496 = 630681^2 + 160136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423402062257 is a prime.

It is not a weakly prime, because it can be changed into another prime (423402062287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211701031128 + 211701031129.

It is an arithmetic number, because the mean of its divisors is an integer number (211701031129).

Almost surely, 2^423402062257 is an apocalyptic number.

It is an amenable number.

423402062257 is a deficient number, since it is larger than the sum of its proper divisors (1).

423402062257 is an equidigital number, since it uses as much as digits as its factorization.

423402062257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 423402062257 in words is "four hundred twenty-three billion, four hundred two million, sixty-two thousand, two hundred fifty-seven".