68262279812 has 12 divisors (see below), whose sum is σ = 120801226140. Its totient is φ = 33747643776.

The previous prime is 68262279809. The next prime is 68262279823. The reversal of 68262279812 is 21897226286.

It can be written as a sum of positive squares in 2 ways, for example, as 27601170496 + 40661109316 = 166136^2 + 201646^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95873633 + ... + 95874344.

It is an arithmetic number, because the mean of its divisors is an integer number (10066768845).

Almost surely, 2^68262279812 is an apocalyptic number.

It is an amenable number.

68262279812 is a deficient number, since it is larger than the sum of its proper divisors (52538946328).

68262279812 is a wasteful number, since it uses less digits than its factorization.

68262279812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191748070 (or 191748068 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 53.

The spelling of 68262279812 in words is "sixty-eight billion, two hundred sixty-two million, two hundred seventy-nine thousand, eight hundred twelve".