817397710948 has 24 divisors (see below), whose sum is σ = 1760548916672. Its totient is φ = 323366127264.

The previous prime is 817397710937. The next prime is 817397710951. The reversal of 817397710948 is 849017793718.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 817397710948.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122798690 + ... + 1122799417.

Almost surely, 2^817397710948 is an apocalyptic number.

It is an amenable number.

817397710948 is an abundant number, since it is smaller than the sum of its proper divisors (943151205724).

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

817397710948 is a wasteful number, since it uses less digits than its factorization.

817397710948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245598131 (or 2245598129 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 64.

The spelling of 817397710948 in words is "eight hundred seventeen billion, three hundred ninety-seven million, seven hundred ten thousand, nine hundred forty-eight".