67628949188723 has 4 divisors (see below), whose sum is σ = 72831176049408. Its totient is φ = 62426722328040.

The previous prime is 67628949188701. The next prime is 67628949188777. The reversal of 67628949188723 is 32788194982676.

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 67628949188723 - 2¹⁸ = 67628948926579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67628949185723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2601113430323 + ... + 2601113430348.

It is an arithmetic number, because the mean of its divisors is an integer number (18207794012352).

Almost surely, 2^{67628949188723} is an apocalyptic number.

67628949188723 is a deficient number, since it is larger than the sum of its proper divisors (5202226860685).

67628949188723 is a wasteful number, since it uses less digits than its factorization.

67628949188723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202226860684.

The product of its digits is 3511517184, while the sum is 80.

The spelling of 67628949188723 in words is "sixty-seven trillion, six hundred twenty-eight billion, nine hundred forty-nine million, one hundred eighty-eight thousand, seven hundred twenty-three".