2648778523 has 2 divisors, whose sum is σ = 2648778524. Its totient is φ = 2648778522.

The previous prime is 2648778487. The next prime is 2648778541. The reversal of 2648778523 is 3258778462.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2648778523 - 2¹³ = 2648770331 is a prime.

It is not a weakly prime, because it can be changed into another prime (2648778563) 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, 1324389261 + 1324389262.

It is an arithmetic number, because the mean of its divisors is an integer number (1324389262).

Almost surely, 2^2648778523 is an apocalyptic number.

2648778523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2648778523 is an equidigital number, since it uses as much as digits as its factorization.

2648778523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 52.

The square root of 2648778523 is about 51466.2853040707. The cubic root of 2648778523 is about 1383.6148529222.

The spelling of 2648778523 in words is "two billion, six hundred forty-eight million, seven hundred seventy-eight thousand, five hundred twenty-three".