31107066845 has 8 divisors (see below), whose sum is σ = 37747901880. Its totient is φ = 24606039040.

The previous prime is 31107066829. The next prime is 31107066877. The reversal of 31107066845 is 54866070113.

It can be written as a sum of positive squares in 4 ways, for example, as 1214731609 + 29892335236 = 34853^2 + 172894^2 .

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

It is not a de Polignac number, because 31107066845 - 2⁴ = 31107066829 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34951316 + ... + 34952205.

It is an arithmetic number, because the mean of its divisors is an integer number (4718487735).

Almost surely, 2^31107066845 is an apocalyptic number.

It is an amenable number.

31107066845 is a deficient number, since it is larger than the sum of its proper divisors (6640835035).

31107066845 is an equidigital number, since it uses as much as digits as its factorization.

31107066845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69903615.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 31107066845 in words is "thirty-one billion, one hundred seven million, sixty-six thousand, eight hundred forty-five".