31612843548 has 144 divisors (see below), whose sum is σ = 93991113216. Its totient is φ = 8832343680.

The previous prime is 31612843547. The next prime is 31612843573. The reversal of 31612843548 is 84534821613.

31612843548 is a `hidden beast` number, since 3 + 1 + 61 + 2 + 8 + 43 + 548 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31612843543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5057361 + ... + 5063607.

It is an arithmetic number, because the mean of its divisors is an integer number (652716064).

Almost surely, 2^31612843548 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 31612843548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46995556608).

31612843548 is an abundant number, since it is smaller than the sum of its proper divisors (62378269668).

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

31612843548 is a wasteful number, since it uses less digits than its factorization.

31612843548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264 (or 7259 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 31612843548 in words is "thirty-one billion, six hundred twelve million, eight hundred forty-three thousand, five hundred forty-eight".