8146783892 has 12 divisors (see below), whose sum is σ = 15353554356. Its totient is φ = 3760054080.

The previous prime is 8146783891. The next prime is 8146783951. The reversal of 8146783892 is 2983876418.

It can be written as a sum of positive squares in 2 ways, for example, as 4906442116 + 3240341776 = 70046^2 + 56924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8146783891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78334409 + ... + 78334512.

It is an arithmetic number, because the mean of its divisors is an integer number (1279462863).

Almost surely, 2^8146783892 is an apocalyptic number.

It is an amenable number.

8146783892 is a deficient number, since it is larger than the sum of its proper divisors (7206770464).

8146783892 is a wasteful number, since it uses less digits than its factorization.

8146783892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156668938 (or 156668936 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The square root of 8146783892 is about 90259.5362939562. The cubic root of 8146783892 is about 2012.1579335649.

The spelling of 8146783892 in words is "eight billion, one hundred forty-six million, seven hundred eighty-three thousand, eight hundred ninety-two".