31350468085 has 4 divisors (see below), whose sum is σ = 37620561708. Its totient is φ = 25080374464.

The previous prime is 31350468059. The next prime is 31350468101. The reversal of 31350468085 is 58086405313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3765908689 + 27584559396 = 61367^2 + 166086^2 .

It is a cyclic number.

It is not a de Polignac number, because 31350468085 - 2⁵ = 31350468053 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 3135046804 + ... + 3135046813.

It is an arithmetic number, because the mean of its divisors is an integer number (9405140427).

Almost surely, 2^31350468085 is an apocalyptic number.

It is an amenable number.

31350468085 is a deficient number, since it is larger than the sum of its proper divisors (6270093623).

31350468085 is an equidigital number, since it uses as much as digits as its factorization.

31350468085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270093622.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 31350468085 in words is "thirty-one billion, three hundred fifty million, four hundred sixty-eight thousand, eighty-five".