423659956297 has 2 divisors, whose sum is σ = 423659956298. Its totient is φ = 423659956296.

The previous prime is 423659956267. The next prime is 423659956331. The reversal of 423659956297 is 792659956324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262529165376 + 161130790921 = 512376^2 + 401411^2 .

It is a cyclic number.

It is not a de Polignac number, because 423659956297 - 2¹⁵ = 423659923529 is a prime.

It is not a weakly prime, because it can be changed into another prime (423659956217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211829978148 + 211829978149.

It is an arithmetic number, because the mean of its divisors is an integer number (211829978149).

Almost surely, 2^423659956297 is an apocalyptic number.

It is an amenable number.

423659956297 is a deficient number, since it is larger than the sum of its proper divisors (1).

423659956297 is an equidigital number, since it uses as much as digits as its factorization.

423659956297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220449600, while the sum is 67.

The spelling of 423659956297 in words is "four hundred twenty-three billion, six hundred fifty-nine million, nine hundred fifty-six thousand, two hundred ninety-seven".