68345203444 has 24 divisors (see below), whose sum is σ = 136699545920. Its totient is φ = 29288843136.

The previous prime is 68345203439. The next prime is 68345203517. The reversal of 68345203444 is 44430254386.

It is a super-2 number, since 2×68345203444² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68345203444.

It is a congruent number.

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, 393127 + ... + 539665.

Almost surely, 2^68345203444 is an apocalyptic number.

It is an amenable number.

68345203444 is an abundant number, since it is smaller than the sum of its proper divisors (68354342476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68345203444 is a wasteful number, since it uses less digits than its factorization.

68345203444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163207 (or 163205 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 68345203444 in words is "sixty-eight billion, three hundred forty-five million, two hundred three thousand, four hundred forty-four".