68132691946 has 16 divisors (see below), whose sum is σ = 111499172928. Its totient is φ = 30966818400.

The previous prime is 68132691941. The next prime is 68132691973. The reversal of 68132691946 is 64919623186.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68132691941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153766 + ... + 399886.

It is an arithmetic number, because the mean of its divisors is an integer number (6968698308).

Almost surely, 2^68132691946 is an apocalyptic number.

68132691946 is a deficient number, since it is larger than the sum of its proper divisors (43366480982).

68132691946 is a wasteful number, since it uses less digits than its factorization.

68132691946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258717.

The product of its digits is 3359232, while the sum is 55.

The spelling of 68132691946 in words is "sixty-eight billion, one hundred thirty-two million, six hundred ninety-one thousand, nine hundred forty-six".