2531298816 has 160 divisors (see below), whose sum is σ = 7601299200. Its totient is φ = 831559680.

The previous prime is 2531298701. The next prime is 2531298823. The reversal of 2531298816 is 6188921352.

2531298816 is a `hidden beast` number, since 2 + 531 + 29 + 88 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980215 + ... + 982793.

It is an arithmetic number, because the mean of its divisors is an integer number (47508120).

Almost surely, 2^2531298816 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 2531298816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3800649600).

2531298816 is an abundant number, since it is smaller than the sum of its proper divisors (5070000384).

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

2531298816 is an equidigital number, since it uses as much as digits as its factorization.

2531298816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677 (or 2655 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 2531298816 is about 50312.0146287147. The cubic root of 2531298816 is about 1362.8492055119.

The spelling of 2531298816 in words is "two billion, five hundred thirty-one million, two hundred ninety-eight thousand, eight hundred sixteen".