68742869772 has 12 divisors (see below), whose sum is σ = 160400029496. Its totient is φ = 22914289920.

The previous prime is 68742869771. The next prime is 68742869777. The reversal of 68742869772 is 27796824786.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (68742869771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2864286229 + ... + 2864286252.

Almost surely, 2^68742869772 is an apocalyptic number.

It is an amenable number.

68742869772 is an abundant number, since it is smaller than the sum of its proper divisors (91657159724).

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

68742869772 is a wasteful number, since it uses less digits than its factorization.

68742869772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728572488 (or 5728572486 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 66.

The spelling of 68742869772 in words is "sixty-eight billion, seven hundred forty-two million, eight hundred sixty-nine thousand, seven hundred seventy-two".