31449285986 has 8 divisors (see below), whose sum is σ = 47179918800. Its totient is φ = 15722646388.

The previous prime is 31449285979. The next prime is 31449286013. The reversal of 31449285986 is 68958294413.

It is a happy number.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978536 + ... + 1010163.

It is an arithmetic number, because the mean of its divisors is an integer number (5897489850).

Almost surely, 2^31449285986 is an apocalyptic number.

31449285986 is a deficient number, since it is larger than the sum of its proper divisors (15730632814).

31449285986 is a wasteful number, since it uses less digits than its factorization.

31449285986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996608.

The product of its digits is 14929920, while the sum is 59.

The spelling of 31449285986 in words is "thirty-one billion, four hundred forty-nine million, two hundred eighty-five thousand, nine hundred eighty-six".