426520516325633 has 4 divisors (see below), whose sum is σ = 426520574225988. Its totient is φ = 426520458425280.

The previous prime is 426520516325567. The next prime is 426520516325653. The reversal of 426520516325633 is 336523615025624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 396122363369329 + 30398152956304 = 19902823^2 + 5513452^2 .

It is a cyclic number.

It is not a de Polignac number, because 426520516325633 - 2⁸ = 426520516325377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426520516325653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15956516 + ... + 33281397.

It is an arithmetic number, because the mean of its divisors is an integer number (106630143556497).

Almost surely, 2^{426520516325633} is an apocalyptic number.

It is an amenable number.

426520516325633 is a deficient number, since it is larger than the sum of its proper divisors (57900355).

426520516325633 is an equidigital number, since it uses as much as digits as its factorization.

426520516325633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57900354.

The product of its (nonzero) digits is 23328000, while the sum is 53.

The spelling of 426520516325633 in words is "four hundred twenty-six trillion, five hundred twenty billion, five hundred sixteen million, three hundred twenty-five thousand, six hundred thirty-three".