426046497557 has 2 divisors, whose sum is σ = 426046497558. Its totient is φ = 426046497556.

The previous prime is 426046497523. The next prime is 426046497571. The reversal of 426046497557 is 755794640624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364826872081 + 61219625476 = 604009^2 + 247426^2 .

It is a cyclic number.

It is not a de Polignac number, because 426046497557 - 2⁸ = 426046497301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426046497496 and 426046497505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426046497517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213023248778 + 213023248779.

It is an arithmetic number, because the mean of its divisors is an integer number (213023248779).

Almost surely, 2^426046497557 is an apocalyptic number.

It is an amenable number.

426046497557 is a deficient number, since it is larger than the sum of its proper divisors (1).

426046497557 is an equidigital number, since it uses as much as digits as its factorization.

426046497557 is an evil number, because the sum of its binary digits is even.

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

The spelling of 426046497557 in words is "four hundred twenty-six billion, forty-six million, four hundred ninety-seven thousand, five hundred fifty-seven".