818412869408 has 12 divisors (see below), whose sum is σ = 1611250336710. Its totient is φ = 409206434688.

The previous prime is 818412869389. The next prime is 818412869413. The reversal of 818412869408 is 804968214818.

818412869408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 708674381584 + 109738487824 = 841828^2 + 331268^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12787701053 + ... + 12787701116.

Almost surely, 2^818412869408 is an apocalyptic number.

It is an amenable number.

818412869408 is a deficient number, since it is larger than the sum of its proper divisors (792837467302).

818412869408 is a wasteful number, since it uses less digits than its factorization.

818412869408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25575402179 (or 25575402171 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 59.

The spelling of 818412869408 in words is "eight hundred eighteen billion, four hundred twelve million, eight hundred sixty-nine thousand, four hundred eight".