68956168946 has 72 divisors (see below), whose sum is σ = 126850536000. Its totient is φ = 27978535200.

The previous prime is 68956168909. The next prime is 68956168949. The reversal of 68956168946 is 64986165986.

Its product of digits (134369280) is a multiple of the sum of its prime factors (3240).

It is not an unprimeable number, because it can be changed into a prime (68956168949) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22991555 + ... + 22994553.

It is an arithmetic number, because the mean of its divisors is an integer number (1761813000).

Almost surely, 2^68956168946 is an apocalyptic number.

68956168946 is a deficient number, since it is larger than the sum of its proper divisors (57894367054).

68956168946 is a wasteful number, since it uses less digits than its factorization.

68956168946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240 (or 3132 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 68.

The spelling of 68956168946 in words is "sixty-eight billion, nine hundred fifty-six million, one hundred sixty-eight thousand, nine hundred forty-six".