31463321890000 has 1200 divisors, whose sum is σ = 109588275276480. Its totient is φ = 8575580160000.

The previous prime is 31463321889949. The next prime is 31463321890001. The reversal of 31463321890000 is 9812336413.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31463321890001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 1331318184 + ... + 1331341816.

Almost surely, 2^{31463321890000} 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 31463321890000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54794137638240).

31463321890000 is an abundant number, since it is smaller than the sum of its proper divisors (78124953386480).

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

31463321890000 is a wasteful number, since it uses less digits than its factorization.

31463321890000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23718 (or 23690 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 31463321890000 in words is "thirty-one trillion, four hundred sixty-three billion, three hundred twenty-one million, eight hundred ninety thousand".