2631923280 has 480 divisors, whose sum is σ = 10710564480. Its totient is φ = 599622912.

The previous prime is 2631923267. The next prime is 2631923299. The reversal of 2631923280 is 823291362.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8572887 + ... + 8573193.

It is an arithmetic number, because the mean of its divisors is an integer number (22313676).

Almost surely, 2^2631923280 is an apocalyptic number.

2631923280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2631923280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5355282240).

2631923280 is an abundant number, since it is smaller than the sum of its proper divisors (8078641200).

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

2631923280 is an equidigital number, since it uses as much as digits as its factorization.

2631923280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2631923280 is about 51302.2736338264. The cubic root of 2631923280 is about 1380.6737730620.

The spelling of 2631923280 in words is "two billion, six hundred thirty-one million, nine hundred twenty-three thousand, two hundred eighty".