31449285985 has 8 divisors (see below), whose sum is σ = 40642154280. Its totient is φ = 23224088064.

The previous prime is 31449285979. The next prime is 31449286013. The reversal of 31449285985 is 58958294413.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4266179856 + 27183106129 = 65316^2 + 164873^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 31449285985 - 2⁵ = 31449285953 is a prime.

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, 241917520 + ... + 241917649.

It is an arithmetic number, because the mean of its divisors is an integer number (5080269285).

Almost surely, 2^31449285985 is an apocalyptic number.

It is an amenable number.

31449285985 is a deficient number, since it is larger than the sum of its proper divisors (9192868295).

31449285985 is a wasteful number, since it uses less digits than its factorization.

31449285985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483835187.

The product of its digits is 12441600, while the sum is 58.

The spelling of 31449285985 in words is "thirty-one billion, four hundred forty-nine million, two hundred eighty-five thousand, nine hundred eighty-five".