31236074268 has 96 divisors (see below), whose sum is σ = 85218739200. Its totient is φ = 8720839680.

The previous prime is 31236074267. The next prime is 31236074281. The reversal of 31236074268 is 86247063213.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31236074263) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 650758 + ... + 697106.

It is an arithmetic number, because the mean of its divisors is an integer number (887695200).

Almost surely, 2^31236074268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31236074268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42609369600).

31236074268 is an abundant number, since it is smaller than the sum of its proper divisors (53982664932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31236074268 is a wasteful number, since it uses less digits than its factorization.

31236074268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46547 (or 46545 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 31236074268 in words is "thirty-one billion, two hundred thirty-six million, seventy-four thousand, two hundred sixty-eight".