31347763480 has 32 divisors (see below), whose sum is σ = 76944511440. Its totient is φ = 11399186560.

The previous prime is 31347763439. The next prime is 31347763481. The reversal of 31347763480 is 8436774313.

It is a self number, because there is not a number n which added to its sum of digits gives 31347763480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31347763481) 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 7 ways as a sum of consecutive naturals, for example, 35622019 + ... + 35622898.

Almost surely, 2^31347763480 is an apocalyptic number.

It is an amenable number.

31347763480 is an abundant number, since it is smaller than the sum of its proper divisors (45596747960).

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

31347763480 is a wasteful number, since it uses less digits than its factorization.

31347763480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71244939 (or 71244935 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 31347763480 in words is "thirty-one billion, three hundred forty-seven million, seven hundred sixty-three thousand, four hundred eighty".