819817710982 has 16 divisors (see below), whose sum is σ = 1295526898800. Its totient is φ = 388011340800.

The previous prime is 819817710953. The next prime is 819817710991. The reversal of 819817710982 is 289017718918.

819817710982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 819817710982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8936107 + ... + 9027382.

It is an arithmetic number, because the mean of its divisors is an integer number (80970431175).

Almost surely, 2^819817710982 is an apocalyptic number.

819817710982 is a deficient number, since it is larger than the sum of its proper divisors (475709187818).

819817710982 is a wasteful number, since it uses less digits than its factorization.

819817710982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17964711.

The product of its (nonzero) digits is 4064256, while the sum is 61.

The spelling of 819817710982 in words is "eight hundred nineteen billion, eight hundred seventeen million, seven hundred ten thousand, nine hundred eighty-two".