105374273691 has 16 divisors (see below), whose sum is σ = 144312381728. Its totient is φ = 68343264000.

The previous prime is 105374273687. The next prime is 105374273773. The reversal of 105374273691 is 196372473501.

It is a happy number.

It is not a de Polignac number, because 105374273691 - 2² = 105374273687 is a prime.

It is a super-2 number, since 2×105374273691² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105374273691.

It is not an unprimeable number, because it can be changed into a prime (105374273671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1051071 + ... + 1146951.

It is an arithmetic number, because the mean of its divisors is an integer number (9019523858).

Almost surely, 2^105374273691 is an apocalyptic number.

105374273691 is a deficient number, since it is larger than the sum of its proper divisors (38938108037).

105374273691 is an equidigital number, since it uses as much as digits as its factorization.

105374273691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105822.

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 105374273691 in words is "one hundred five billion, three hundred seventy-four million, two hundred seventy-three thousand, six hundred ninety-one".