31447423489000 has 192 divisors, whose sum is σ = 76848892164720. Its totient is φ = 12040580864000.

The previous prime is 31447423488889. The next prime is 31447423489033. The reversal of 31447423489000 is 98432474413.

It can be written as a sum of positive squares in 24 ways, for example, as 30478415567076 + 969007921924 = 5520726^2 + 984382^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88916514 + ... + 89269486.

Almost surely, 2^{31447423489000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31447423489000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38424446082360).

31447423489000 is an abundant number, since it is smaller than the sum of its proper divisors (45401468675720).

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

31447423489000 is a wasteful number, since it uses less digits than its factorization.

31447423489000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353129 (or 353074 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 31447423489000 in words is "thirty-one trillion, four hundred forty-seven billion, four hundred twenty-three million, four hundred eighty-nine thousand".