31483140480 has 512 divisors, whose sum is σ = 128807884800. Its totient is φ = 7182581760.

The previous prime is 31483140421. The next prime is 31483140517. The reversal of 31483140480 is 8404138413.

31483140480 is a `hidden beast` number, since 3 + 148 + 31 + 4 + 0 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3226489 + ... + 3236231.

It is an arithmetic number, because the mean of its divisors is an integer number (251577900).

Almost surely, 2^31483140480 is an apocalyptic number.

31483140480 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 31483140480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64403942400).

31483140480 is an abundant number, since it is smaller than the sum of its proper divisors (97324744320).

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

31483140480 is a wasteful number, since it uses less digits than its factorization.

31483140480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9799 (or 9781 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

Adding to 31483140480 its reverse (8404138413), we get a palindrome (39887278893).

The spelling of 31483140480 in words is "thirty-one billion, four hundred eighty-three million, one hundred forty thousand, four hundred eighty".