1423357626857 has 2 divisors, whose sum is σ = 1423357626858. Its totient is φ = 1423357626856.

The previous prime is 1423357626841. The next prime is 1423357626907. The reversal of 1423357626857 is 7586267533241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1190130446761 + 233227180096 = 1090931^2 + 482936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423357626857 - 2⁴ = 1423357626841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1423357626796 and 1423357626805.

It is not a weakly prime, because it can be changed into another prime (1423357626827) 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, 711678813428 + 711678813429.

It is an arithmetic number, because the mean of its divisors is an integer number (711678813429).

Almost surely, 2^{1423357626857} is an apocalyptic number.

It is an amenable number.

1423357626857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423357626857 is an equidigital number, since it uses as much as digits as its factorization.

1423357626857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 59.

The spelling of 1423357626857 in words is "one trillion, four hundred twenty-three billion, three hundred fifty-seven million, six hundred twenty-six thousand, eight hundred fifty-seven".