819879352902 has 48 divisors (see below), whose sum is σ = 1781007454512. Its totient is φ = 272585618880.

The previous prime is 819879352883. The next prime is 819879352937. The reversal of 819879352902 is 209253978918.

819879352902 is a `hidden beast` number, since 8 + 19 + 8 + 7 + 93 + 529 + 0 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 819879352902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19792252 + ... + 19833632.

It is an arithmetic number, because the mean of its divisors is an integer number (37104321969).

Almost surely, 2^819879352902 is an apocalyptic number.

819879352902 is an abundant number, since it is smaller than the sum of its proper divisors (961128101610).

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

819879352902 is a wasteful number, since it uses less digits than its factorization.

819879352902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44213 (or 44210 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 819879352902 in words is "eight hundred nineteen billion, eight hundred seventy-nine million, three hundred fifty-two thousand, nine hundred two".