2631453509 has 2 divisors, whose sum is σ = 2631453510. Its totient is φ = 2631453508.

The previous prime is 2631453479. The next prime is 2631453553. The reversal of 2631453509 is 9053541362.

2631453509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2276244100 + 355209409 = 47710^2 + 18847^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631453509 - 2²⁴ = 2614676293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2631453599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315726754 + 1315726755.

It is an arithmetic number, because the mean of its divisors is an integer number (1315726755).

Almost surely, 2^2631453509 is an apocalyptic number.

It is an amenable number.

2631453509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631453509 is an equidigital number, since it uses as much as digits as its factorization.

2631453509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 2631453509 is about 51297.6949677079. The cubic root of 2631453509 is about 1380.5916228593.

The spelling of 2631453509 in words is "two billion, six hundred thirty-one million, four hundred fifty-three thousand, five hundred nine".