817414971930 has 128 divisors (see below), whose sum is σ = 2307379219200. Its totient is φ = 205566342912.

The previous prime is 817414971907. The next prime is 817414971983. The reversal of 817414971930 is 39179414718.

It is a happy number.

817414971930 is a `hidden beast` number, since 81 + 7 + 41 + 497 + 1 + 9 + 30 = 666.

817414971930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 877209 + ... + 1550588.

It is an arithmetic number, because the mean of its divisors is an integer number (18026400150).

Almost surely, 2^817414971930 is an apocalyptic number.

817414971930 is an abundant number, since it is smaller than the sum of its proper divisors (1489964247270).

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

817414971930 is a wasteful number, since it uses less digits than its factorization.

817414971930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427885 (or 2427879 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 817414971930 in words is "eight hundred seventeen billion, four hundred fourteen million, nine hundred seventy-one thousand, nine hundred thirty".