426520516325643 has 16 divisors (see below), whose sum is σ = 632155670233600. Its totient is φ = 284223970162440.

The previous prime is 426520516325567. The next prime is 426520516325653. The reversal of 426520516325643 is 346523615025624.

426520516325643 is a `hidden beast` number, since 4 + 2 + 6 + 5 + 2 + 0 + 516 + 32 + 56 + 43 = 666.

It is not a de Polignac number, because 426520516325643 - 2¹² = 426520516321547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426520516325643.

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 15 ways as a sum of consecutive naturals, for example, 3417734263 + ... + 3417859056.

It is an arithmetic number, because the mean of its divisors is an integer number (39509729389600).

Almost surely, 2^{426520516325643} is an apocalyptic number.

426520516325643 is a deficient number, since it is larger than the sum of its proper divisors (205635153907957).

426520516325643 is a wasteful number, since it uses less digits than its factorization.

426520516325643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6835595639 (or 6835595633 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 426520516325643 in words is "four hundred twenty-six trillion, five hundred twenty billion, five hundred sixteen million, three hundred twenty-five thousand, six hundred forty-three".