838426925668 has 24 divisors (see below), whose sum is σ = 1495054318968. Its totient is φ = 411269853696.

The previous prime is 838426925627. The next prime is 838426925711. The reversal of 838426925668 is 866529624838.

It can be written as a sum of positive squares in 4 ways, for example, as 350359815744 + 488067109924 = 591912^2 + 698618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517180 + ... + 2830732.

It is an arithmetic number, because the mean of its divisors is an integer number (62293929957).

Almost surely, 2^838426925668 is an apocalyptic number.

It is an amenable number.

838426925668 is a deficient number, since it is larger than the sum of its proper divisors (656627393300).

838426925668 is a wasteful number, since it uses less digits than its factorization.

838426925668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326223 (or 326221 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 67.

The spelling of 838426925668 in words is "eight hundred thirty-eight billion, four hundred twenty-six million, nine hundred twenty-five thousand, six hundred sixty-eight".