2688454631 has 2 divisors, whose sum is σ = 2688454632. Its totient is φ = 2688454630.

The previous prime is 2688454537. The next prime is 2688454649. The reversal of 2688454631 is 1364548862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2688454631 is a prime.

It is a super-2 number, since 2×2688454631² = 14455576605890692322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2688454031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344227315 + 1344227316.

It is an arithmetic number, because the mean of its divisors is an integer number (1344227316).

Almost surely, 2^2688454631 is an apocalyptic number.

2688454631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2688454631 is an equidigital number, since it uses as much as digits as its factorization.

2688454631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1105920, while the sum is 47.

The square root of 2688454631 is about 51850.3098447830. The cubic root of 2688454631 is about 1390.4890419022.

The spelling of 2688454631 in words is "two billion, six hundred eighty-eight million, four hundred fifty-four thousand, six hundred thirty-one".