31864248118 has 16 divisors (see below), whose sum is σ = 49736871360. Its totient is φ = 15297851016.

The previous prime is 31864248109. The next prime is 31864248151. The reversal of 31864248118 is 81184246813.

It is a congruent number.

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, 3134880 + ... + 3145027.

It is an arithmetic number, because the mean of its divisors is an integer number (3108554460).

Almost surely, 2^31864248118 is an apocalyptic number.

31864248118 is a deficient number, since it is larger than the sum of its proper divisors (17872623242).

31864248118 is a wasteful number, since it uses less digits than its factorization.

31864248118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280011.

The product of its digits is 294912, while the sum is 46.

The spelling of 31864248118 in words is "thirty-one billion, eight hundred sixty-four million, two hundred forty-eight thousand, one hundred eighteen".