31494934080 has 224 divisors, whose sum is σ = 115938604800. Its totient is φ = 8033439744.

The previous prime is 31494933997. The next prime is 31494934087. The reversal of 31494934080 is 8043949413.

It is a happy number.

31494934080 is a `hidden beast` number, since 3 + 1 + 49 + 493 + 40 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (31494934087) 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 31 ways as a sum of consecutive naturals, for example, 119476 + ... + 277964.

Almost surely, 2^31494934080 is an apocalyptic number.

31494934080 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 31494934080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57969302400).

31494934080 is an abundant number, since it is smaller than the sum of its proper divisors (84443670720).

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

31494934080 is a wasteful number, since it uses less digits than its factorization.

31494934080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158538 (or 158522 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 31494934080 in words is "thirty-one billion, four hundred ninety-four million, nine hundred thirty-four thousand, eighty".