819652605992 has 128 divisors (see below), whose sum is σ = 1783643431680. Its totient is φ = 348986880000.

The previous prime is 819652605983. The next prime is 819652606039. The reversal of 819652605992 is 299506256918.

819652605992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321305117 + ... + 321307667.

It is an arithmetic number, because the mean of its divisors is an integer number (13934714310).

Almost surely, 2^819652605992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 819652605992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891821715840).

819652605992 is an abundant number, since it is smaller than the sum of its proper divisors (963990825688).

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

819652605992 is a wasteful number, since it uses less digits than its factorization.

819652605992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523 (or 3519 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 62.

The spelling of 819652605992 in words is "eight hundred nineteen billion, six hundred fifty-two million, six hundred five thousand, nine hundred ninety-two".