819025206402 has 16 divisors (see below), whose sum is σ = 1764054290880. Its totient is φ = 252007755792.

The previous prime is 819025206383. The next prime is 819025206403. The reversal of 819025206402 is 204602520918.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (819025206403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5250161502 + ... + 5250161657.

It is an arithmetic number, because the mean of its divisors is an integer number (110253393180).

Almost surely, 2^819025206402 is an apocalyptic number.

819025206402 is an abundant number, since it is smaller than the sum of its proper divisors (945029084478).

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

819025206402 is a wasteful number, since it uses less digits than its factorization.

819025206402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500323177.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 819025206402 in words is "eight hundred nineteen billion, twenty-five million, two hundred six thousand, four hundred two".