31446052816 has 40 divisors (see below), whose sum is σ = 61096089600. Its totient is φ = 15679387776.

The previous prime is 31446052793. The next prime is 31446052817. The reversal of 31446052816 is 61825064413.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31446052817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15937206 + ... + 15939178.

It is an arithmetic number, because the mean of its divisors is an integer number (1527402240).

Almost surely, 2^31446052816 is an apocalyptic number.

It is an amenable number.

31446052816 is a deficient number, since it is larger than the sum of its proper divisors (29650036784).

31446052816 is a wasteful number, since it uses less digits than its factorization.

31446052816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243 (or 4237 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 31446052816 in words is "thirty-one billion, four hundred forty-six million, fifty-two thousand, eight hundred sixteen".