67928237047 has 4 divisors (see below), whose sum is σ = 74103531336. Its totient is φ = 61752942760.

The previous prime is 67928237023. The next prime is 67928237051. The reversal of 67928237047 is 74073282976.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67928237047 - 2³⁵ = 33568498679 is a prime.

It is a super-2 number, since 2×67928237047² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67928237057) 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 3 ways as a sum of consecutive naturals, for example, 3087647128 + ... + 3087647149.

It is an arithmetic number, because the mean of its divisors is an integer number (18525882834).

Almost surely, 2^67928237047 is an apocalyptic number.

67928237047 is a deficient number, since it is larger than the sum of its proper divisors (6175294289).

67928237047 is a wasteful number, since it uses less digits than its factorization.

67928237047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175294288.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 67928237047 in words is "sixty-seven billion, nine hundred twenty-eight million, two hundred thirty-seven thousand, forty-seven".