31484171008 has 72 divisors (see below), whose sum is σ = 66277476720. Its totient is φ = 14885498880.

The previous prime is 31484170967. The next prime is 31484171029. The reversal of 31484171008 is 80017148413.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2703438 + ... + 2715058.

It is an arithmetic number, because the mean of its divisors is an integer number (920520510).

Almost surely, 2^31484171008 is an apocalyptic number.

31484171008 is a gapful number since it is divisible by the number (38) 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 31484171008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33138738360).

31484171008 is an abundant number, since it is smaller than the sum of its proper divisors (34793305712).

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

31484171008 is a wasteful number, since it uses less digits than its factorization.

31484171008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12213 (or 12199 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 31484171008 in words is "thirty-one billion, four hundred eighty-four million, one hundred seventy-one thousand, eight".