2821715892 has 48 divisors (see below), whose sum is σ = 7567828800. Its totient is φ = 908137440.

The previous prime is 2821715861. The next prime is 2821715893. The reversal of 2821715892 is 2985171282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821715893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447334 + ... + 453597.

It is an arithmetic number, because the mean of its divisors is an integer number (157663100).

Almost surely, 2^2821715892 is an apocalyptic number.

It is an amenable number.

2821715892 is an abundant number, since it is smaller than the sum of its proper divisors (4746112908).

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

2821715892 is a wasteful number, since it uses less digits than its factorization.

2821715892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900973 (or 900965 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The square root of 2821715892 is about 53119.8257903770. The cubic root of 2821715892 is about 1413.0941377322.

The spelling of 2821715892 in words is "two billion, eight hundred twenty-one million, seven hundred fifteen thousand, eight hundred ninety-two".