31484428800 has 480 divisors, whose sum is σ = 119464139520. Its totient is φ = 7229030400.

The previous prime is 31484428799. The next prime is 31484428861. The reversal of 31484428800 is 882448413.

It is a tau number, because it is divible by the number of its divisors (480).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8023639 + ... + 8027561.

It is an arithmetic number, because the mean of its divisors is an integer number (248883624).

Almost surely, 2^31484428800 is an apocalyptic number.

31484428800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31484428800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59732069760).

31484428800 is an abundant number, since it is smaller than the sum of its proper divisors (87979710720).

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

31484428800 is a wasteful number, since it uses less digits than its factorization.

31484428800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984 (or 3963 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The spelling of 31484428800 in words is "thirty-one billion, four hundred eighty-four million, four hundred twenty-eight thousand, eight hundred".