67946229975687 has 32 divisors (see below), whose sum is σ = 103925733765120. Its totient is φ = 38680694449920.

The previous prime is 67946229975587. The next prime is 67946229975691. The reversal of 67946229975687 is 78657992264976.

It is not a de Polignac number, because 67946229975687 - 2⁸ = 67946229975431 is a prime.

It is a super-2 number, since 2×67946229975687² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67946229975587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169173387 + ... + 169574547.

It is an arithmetic number, because the mean of its divisors is an integer number (3247679180160).

Almost surely, 2^{67946229975687} is an apocalyptic number.

67946229975687 is a deficient number, since it is larger than the sum of its proper divisors (35979503789433).

67946229975687 is a wasteful number, since it uses less digits than its factorization.

67946229975687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431423.

The product of its digits is 34566497280, while the sum is 87.

The spelling of 67946229975687 in words is "sixty-seven trillion, nine hundred forty-six billion, two hundred twenty-nine million, nine hundred seventy-five thousand, six hundred eighty-seven".