31050782066 has 8 divisors (see below), whose sum is σ = 46988351964. Its totient is φ = 15387998080.

The previous prime is 31050781963. The next prime is 31050782071. The reversal of 31050782066 is 66028705013.

It can be written as a sum of positive squares in 2 ways, for example, as 27723915025 + 3326867041 = 166505^2 + 57679^2 .

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

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, 68696195 + ... + 68696646.

Almost surely, 2^31050782066 is an apocalyptic number.

31050782066 is a deficient number, since it is larger than the sum of its proper divisors (15937569898).

31050782066 is a wasteful number, since it uses less digits than its factorization.

31050782066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137392956.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 31050782066 in words is "thirty-one billion, fifty million, seven hundred eighty-two thousand, sixty-six".