31783046009 has 12 divisors (see below), whose sum is σ = 37544686992. Its totient is φ = 26671086000.

The previous prime is 31783046003. The next prime is 31783046011. The reversal of 31783046009 is 90064038713.

It is not a de Polignac number, because 31783046009 - 2¹⁶ = 31782980473 is a prime.

It is a super-2 number, since 2×31783046009² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31783046003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8546567 + ... + 8550284.

It is an arithmetic number, because the mean of its divisors is an integer number (3128723916).

Almost surely, 2^31783046009 is an apocalyptic number.

It is an amenable number.

31783046009 is a deficient number, since it is larger than the sum of its proper divisors (5761640983).

31783046009 is a wasteful number, since it uses less digits than its factorization.

31783046009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17096888 (or 17096875 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 31783046009 in words is "thirty-one billion, seven hundred eighty-three million, forty-six thousand, nine".