68371561360 has 20 divisors (see below), whose sum is σ = 158963880348. Its totient is φ = 27348624512.

The previous prime is 68371561331. The next prime is 68371561361. The reversal of 68371561360 is 6316517386.

It can be written as a sum of positive squares in 2 ways, for example, as 8950673664 + 59420887696 = 94608^2 + 243764^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 68371561360.

It is not an unprimeable number, because it can be changed into a prime (68371561361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427322179 + ... + 427322338.

Almost surely, 2^68371561360 is an apocalyptic number.

It is an amenable number.

68371561360 is an abundant number, since it is smaller than the sum of its proper divisors (90592318988).

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

68371561360 is a wasteful number, since it uses less digits than its factorization.

68371561360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854644530 (or 854644524 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 68371561360 in words is "sixty-eight billion, three hundred seventy-one million, five hundred sixty-one thousand, three hundred sixty".