31284370245 has 16 divisors (see below), whose sum is σ = 50070873600. Its totient is φ = 16679703744.

The previous prime is 31284370237. The next prime is 31284370259. The reversal of 31284370245 is 54207348213.

It is not a de Polignac number, because 31284370245 - 2³ = 31284370237 is a prime.

It is a Curzon number.

It is a congruent 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, 281770 + ... + 376779.

It is an arithmetic number, because the mean of its divisors is an integer number (3129429600).

Almost surely, 2^31284370245 is an apocalyptic number.

It is an amenable number.

31284370245 is a deficient number, since it is larger than the sum of its proper divisors (18786503355).

31284370245 is a wasteful number, since it uses less digits than its factorization.

31284370245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661724.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 31284370245 in words is "thirty-one billion, two hundred eighty-four million, three hundred seventy thousand, two hundred forty-five".