2657148409 has 2 divisors, whose sum is σ = 2657148410. Its totient is φ = 2657148408.

The previous prime is 2657148401. The next prime is 2657148449. The reversal of 2657148409 is 9048417562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2547422784 + 109725625 = 50472^2 + 10475^2 .

It is a cyclic number.

It is not a de Polignac number, because 2657148409 - 2³ = 2657148401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2657148401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328574204 + 1328574205.

It is an arithmetic number, because the mean of its divisors is an integer number (1328574205).

Almost surely, 2^2657148409 is an apocalyptic number.

It is an amenable number.

2657148409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657148409 is an equidigital number, since it uses as much as digits as its factorization.

2657148409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 2657148409 is about 51547.5354309011. The cubic root of 2657148409 is about 1385.0706839640.

The spelling of 2657148409 in words is "two billion, six hundred fifty-seven million, one hundred forty-eight thousand, four hundred nine".