31423222986 has 32 divisors (see below), whose sum is σ = 63303768000. Its totient is φ = 10398266880.

The previous prime is 31423222951. The next prime is 31423223003. The reversal of 31423222986 is 68922232413.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1760346 + ... + 1778106.

It is an arithmetic number, because the mean of its divisors is an integer number (1978242750).

Almost surely, 2^31423222986 is an apocalyptic number.

31423222986 is an abundant number, since it is smaller than the sum of its proper divisors (31880545014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31423222986 is a wasteful number, since it uses less digits than its factorization.

31423222986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19894.

The product of its digits is 248832, while the sum is 42.

The spelling of 31423222986 in words is "thirty-one billion, four hundred twenty-three million, two hundred twenty-two thousand, nine hundred eighty-six".