31443028892 has 12 divisors (see below), whose sum is σ = 60027600696. Its totient is φ = 14292285840.

The previous prime is 31443028891. The next prime is 31443028907. The reversal of 31443028892 is 29882034413.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 714614293 = 31443028892 / (3 + 1 + 4 + 4 + 3 + 0 + 2 + 8 + 8 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31443028891) 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 3 ways as a sum of consecutive naturals, for example, 357307103 + ... + 357307190.

It is an arithmetic number, because the mean of its divisors is an integer number (5002300058).

Almost surely, 2^31443028892 is an apocalyptic number.

It is an amenable number.

31443028892 is a deficient number, since it is larger than the sum of its proper divisors (28584571804).

31443028892 is a wasteful number, since it uses less digits than its factorization.

31443028892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714614308 (or 714614306 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 31443028892 in words is "thirty-one billion, four hundred forty-three million, twenty-eight thousand, eight hundred ninety-two".