31380166847484 has 324 divisors, whose sum is σ = 100155383186040. Its totient is φ = 8256303095040.

The previous prime is 31380166847479. The next prime is 31380166847501. The reversal of 31380166847484 is 48474866108313.

31380166847484 is a `hidden beast` number, since 3 + 1 + 3 + 80 + 1 + 6 + 6 + 8 + 474 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 124784994 + ... + 125036214.

Almost surely, 2^{31380166847484} 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 31380166847484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50077691593020).

31380166847484 is an abundant number, since it is smaller than the sum of its proper divisors (68775216338556).

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

31380166847484 is a wasteful number, since it uses less digits than its factorization.

31380166847484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251690 (or 251665 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 63.

The spelling of 31380166847484 in words is "thirty-one trillion, three hundred eighty billion, one hundred sixty-six million, eight hundred forty-seven thousand, four hundred eighty-four".