2631307263 has 16 divisors (see below), whose sum is σ = 3817244256. Its totient is φ = 1602570240.

The previous prime is 2631307241. The next prime is 2631307309. The reversal of 2631307263 is 3627031362.

It is not a de Polignac number, because 2631307263 - 2¹⁶ = 2631241727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631307223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343998 + ... + 351563.

It is an arithmetic number, because the mean of its divisors is an integer number (238577766).

Almost surely, 2^2631307263 is an apocalyptic number.

2631307263 is a deficient number, since it is larger than the sum of its proper divisors (1185936993).

2631307263 is a wasteful number, since it uses less digits than its factorization.

2631307263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695674.

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 2631307263 is about 51296.2694842422. The cubic root of 2631307263 is about 1380.5660464061.

The spelling of 2631307263 in words is "two billion, six hundred thirty-one million, three hundred seven thousand, two hundred sixty-three".