818074378468 has 6 divisors (see below), whose sum is σ = 1431630162326. Its totient is φ = 409037189232.

The previous prime is 818074378447. The next prime is 818074378477. The reversal of 818074378468 is 864873470818.

It can be written as a sum of positive squares in only one way, i.e., 758749007844 + 59325370624 = 871062^2 + 243568^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102259297305 + ... + 102259297312.

Almost surely, 2^818074378468 is an apocalyptic number.

It is an amenable number.

818074378468 is a deficient number, since it is larger than the sum of its proper divisors (613555783858).

818074378468 is a wasteful number, since it uses less digits than its factorization.

818074378468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204518594621 (or 204518594619 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 64.

The spelling of 818074378468 in words is "eight hundred eighteen billion, seventy-four million, three hundred seventy-eight thousand, four hundred sixty-eight".