31350486432 has 96 divisors (see below), whose sum is σ = 83586843648. Its totient is φ = 10287035136.

The previous prime is 31350486389. The next prime is 31350486491. The reversal of 31350486432 is 23468405313.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2247993 + ... + 2261895.

It is an arithmetic number, because the mean of its divisors is an integer number (870696288).

Almost surely, 2^31350486432 is an apocalyptic number.

31350486432 is a gapful number since it is divisible by the number (32) 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 31350486432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41793421824).

31350486432 is an abundant number, since it is smaller than the sum of its proper divisors (52236357216).

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

31350486432 is a wasteful number, since it uses less digits than its factorization.

31350486432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14282 (or 14274 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 31350486432 in words is "thirty-one billion, three hundred fifty million, four hundred eighty-six thousand, four hundred thirty-two".