31344543986 has 16 divisors (see below), whose sum is σ = 53765283264. Its totient is φ = 13425431184.

The previous prime is 31344543959. The next prime is 31344544001. The reversal of 31344543986 is 68934544313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637520 + ... + 684923.

It is an arithmetic number, because the mean of its divisors is an integer number (3360330204).

Almost surely, 2^31344543986 is an apocalyptic number.

31344543986 is a deficient number, since it is larger than the sum of its proper divisors (22420739278).

31344543986 is a wasteful number, since it uses less digits than its factorization.

31344543986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324145.

The product of its digits is 3732480, while the sum is 50.

The spelling of 31344543986 in words is "thirty-one billion, three hundred forty-four million, five hundred forty-three thousand, nine hundred eighty-six".