2630665451 has 2 divisors, whose sum is σ = 2630665452. Its totient is φ = 2630665450.

The previous prime is 2630665439. The next prime is 2630665537. The reversal of 2630665451 is 1545660362.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2630665451 - 2²² = 2626471147 is a prime.

It is not a weakly prime, because it can be changed into another prime (2630695451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315332725 + 1315332726.

It is an arithmetic number, because the mean of its divisors is an integer number (1315332726).

Almost surely, 2^2630665451 is an apocalyptic number.

2630665451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630665451 is an equidigital number, since it uses as much as digits as its factorization.

2630665451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 2630665451 is about 51290.0131702069. The cubic root of 2630665451 is about 1380.4537909354.

The spelling of 2630665451 in words is "two billion, six hundred thirty million, six hundred sixty-five thousand, four hundred fifty-one".