67670807787947 has 8 divisors (see below), whose sum is σ = 83287148046816. Its totient is φ = 53541738029952.

The previous prime is 67670807787931. The next prime is 67670807787949. The reversal of 67670807787947 is 74978770807676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67670807787947 - 2⁴ = 67670807787931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67670807787949) 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 7 ways as a sum of consecutive naturals, for example, 371817625118 + ... + 371817625299.

It is an arithmetic number, because the mean of its divisors is an integer number (10410893505852).

Almost surely, 2^{67670807787947} is an apocalyptic number.

67670807787947 is a deficient number, since it is larger than the sum of its proper divisors (15616340258869).

67670807787947 is a wasteful number, since it uses less digits than its factorization.

67670807787947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743635250437.

The product of its (nonzero) digits is 9758278656, while the sum is 83.

The spelling of 67670807787947 in words is "sixty-seven trillion, six hundred seventy billion, eight hundred seven million, seven hundred eighty-seven thousand, nine hundred forty-seven".