2516971823 has 2 divisors, whose sum is σ = 2516971824. Its totient is φ = 2516971822.

The previous prime is 2516971759. The next prime is 2516971843. The reversal of 2516971823 is 3281796152.

2516971823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2516971823 - 2⁶ = 2516971759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2516971843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258485911 + 1258485912.

It is an arithmetic number, because the mean of its divisors is an integer number (1258485912).

Almost surely, 2^2516971823 is an apocalyptic number.

2516971823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516971823 is an equidigital number, since it uses as much as digits as its factorization.

2516971823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 2516971823 is about 50169.4311608174. The cubic root of 2516971823 is about 1360.2731254725.

The spelling of 2516971823 in words is "two billion, five hundred sixteen million, nine hundred seventy-one thousand, eight hundred twenty-three".