973720667811 has 16 divisors (see below), whose sum is σ = 1309830796800. Its totient is φ = 643397647200.

The previous prime is 973720667749. The next prime is 973720667923. The reversal of 973720667811 is 118766027379.

It is a happy number.

It is not a de Polignac number, because 973720667811 - 2⁶ = 973720667747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (973720665811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145465 + ... + 2559386.

It is an arithmetic number, because the mean of its divisors is an integer number (81864424800).

Almost surely, 2^973720667811 is an apocalyptic number.

973720667811 is a deficient number, since it is larger than the sum of its proper divisors (336110128989).

973720667811 is a wasteful number, since it uses less digits than its factorization.

973720667811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705466.

The product of its (nonzero) digits is 5334336, while the sum is 57.

The spelling of 973720667811 in words is "nine hundred seventy-three billion, seven hundred twenty million, six hundred sixty-seven thousand, eight hundred eleven".