2520646823 has 2 divisors, whose sum is σ = 2520646824. Its totient is φ = 2520646822.

The previous prime is 2520646789. The next prime is 2520646841. The reversal of 2520646823 is 3286460252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2520646823 - 2¹² = 2520642727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520646123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260323411 + 1260323412.

It is an arithmetic number, because the mean of its divisors is an integer number (1260323412).

Almost surely, 2^2520646823 is an apocalyptic number.

2520646823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520646823 is an equidigital number, since it uses as much as digits as its factorization.

2520646823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 2520646823 is about 50206.0436899782. The cubic root of 2520646823 is about 1360.9348429468.

The spelling of 2520646823 in words is "two billion, five hundred twenty million, six hundred forty-six thousand, eight hundred twenty-three".