8001407866 has 32 divisors (see below), whose sum is σ = 12281713920. Its totient is φ = 3908653056.

The previous prime is 8001407863. The next prime is 8001407899. The reversal of 8001407866 is 6687041008.

It is not an unprimeable number, because it can be changed into a prime (8001407863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13866970 + ... + 13867546.

It is an arithmetic number, because the mean of its divisors is an integer number (383803560).

Almost surely, 2^8001407866 is an apocalyptic number.

8001407866 is a deficient number, since it is larger than the sum of its proper divisors (4280306054).

8001407866 is a wasteful number, since it uses less digits than its factorization.

8001407866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 8001407866 is about 89450.5889639638. The cubic root of 8001407866 is about 2000.1173152851.

The spelling of 8001407866 in words is "eight billion, one million, four hundred seven thousand, eight hundred sixty-six".