2631321276 has 12 divisors (see below), whose sum is σ = 6139749672. Its totient is φ = 877107088.

The previous prime is 2631321271. The next prime is 2631321289. The reversal of 2631321276 is 6721231362.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631321271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109638375 + ... + 109638398.

It is an arithmetic number, because the mean of its divisors is an integer number (511645806).

Almost surely, 2^2631321276 is an apocalyptic number.

It is an amenable number.

2631321276 is an abundant number, since it is smaller than the sum of its proper divisors (3508428396).

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

2631321276 is a wasteful number, since it uses less digits than its factorization.

2631321276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219276780 (or 219276778 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 2631321276 is about 51296.4060729404. The cubic root of 2631321276 is about 1380.5684971319.

The spelling of 2631321276 in words is "two billion, six hundred thirty-one million, three hundred twenty-one thousand, two hundred seventy-six".