8078397832 has 16 divisors (see below), whose sum is σ = 15354490140. Its totient is φ = 3983867136.

The previous prime is 8078397809. The next prime is 8078397839. The reversal of 8078397832 is 2387938708.

It can be written as a sum of positive squares in 2 ways, for example, as 7685327556 + 393070276 = 87666^2 + 19826^2 .

It is not an unprimeable number, because it can be changed into a prime (8078397839) 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, 6915853 + ... + 6917020.

Almost surely, 2^8078397832 is an apocalyptic number.

It is an amenable number.

8078397832 is a deficient number, since it is larger than the sum of its proper divisors (7276092308).

8078397832 is a wasteful number, since it uses less digits than its factorization.

8078397832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13832952 (or 13832948 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The square root of 8078397832 is about 89879.9078326185. The cubic root of 8078397832 is about 2006.5119270580.

The spelling of 8078397832 in words is "eight billion, seventy-eight million, three hundred ninety-seven thousand, eight hundred thirty-two".