31299946452 has 144 divisors (see below), whose sum is σ = 84919091712. Its totient is φ = 10070231040.

The previous prime is 31299946411. The next prime is 31299946493. The reversal of 31299946452 is 25464999213.

31299946452 is a `hidden beast` number, since 3 + 12 + 99 + 94 + 6 + 452 = 666.

It is an interprime number because it is at equal distance from previous prime (31299946411) and next prime (31299946493).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 13769188 + ... + 13771460.

Almost surely, 2^31299946452 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 31299946452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42459545856).

31299946452 is an abundant number, since it is smaller than the sum of its proper divisors (53619145260).

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

31299946452 is a wasteful number, since it uses less digits than its factorization.

31299946452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780 (or 2766 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 31299946452 in words is "thirty-one billion, two hundred ninety-nine million, nine hundred forty-six thousand, four hundred fifty-two".