806864961634 has 16 divisors (see below), whose sum is σ = 1296931069728. Its totient is φ = 375126444352.

The previous prime is 806864961631. The next prime is 806864961667. The reversal of 806864961634 is 436169468608.

806864961634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (806864961631) 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, 142956952 + ... + 142962595.

It is an arithmetic number, because the mean of its divisors is an integer number (81058191858).

Almost surely, 2^806864961634 is an apocalyptic number.

806864961634 is a deficient number, since it is larger than the sum of its proper divisors (490066108094).

806864961634 is a wasteful number, since it uses less digits than its factorization.

806864961634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285919649.

The product of its (nonzero) digits is 35831808, while the sum is 61.

The spelling of 806864961634 in words is "eight hundred six billion, eight hundred sixty-four million, nine hundred sixty-one thousand, six hundred thirty-four".