425074726493 has 2 divisors, whose sum is σ = 425074726494. Its totient is φ = 425074726492.

The previous prime is 425074726471. The next prime is 425074726511. The reversal of 425074726493 is 394627470524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236004554809 + 189070171684 = 485803^2 + 434822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425074726493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425074726463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212537363246 + 212537363247.

It is an arithmetic number, because the mean of its divisors is an integer number (212537363247).

Almost surely, 2^425074726493 is an apocalyptic number.

It is an amenable number.

425074726493 is a deficient number, since it is larger than the sum of its proper divisors (1).

425074726493 is an equidigital number, since it uses as much as digits as its factorization.

425074726493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 425074726493 in words is "four hundred twenty-five billion, seventy-four million, seven hundred twenty-six thousand, four hundred ninety-three".