826563304816 has 40 divisors (see below), whose sum is σ = 1689871796640. Its totient is φ = 390871151616.

The previous prime is 826563304811. The next prime is 826563304817. The reversal of 826563304816 is 618403365628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826563304811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12585765 + ... + 12651268.

It is an arithmetic number, because the mean of its divisors is an integer number (42246794916).

Almost surely, 2^826563304816 is an apocalyptic number.

It is an amenable number.

826563304816 is an abundant number, since it is smaller than the sum of its proper divisors (863308491824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

826563304816 is a wasteful number, since it uses less digits than its factorization.

826563304816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25237153 (or 25237147 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 826563304816 in words is "eight hundred twenty-six billion, five hundred sixty-three million, three hundred four thousand, eight hundred sixteen".