4851561106523 has 2 divisors, whose sum is σ = 4851561106524. Its totient is φ = 4851561106522.

The previous prime is 4851561106481. The next prime is 4851561106603. The reversal of 4851561106523 is 3256011651584.

4851561106523 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4851561106523 - 2¹⁶ = 4851561040987 is a prime.

It is not a weakly prime, because it can be changed into another prime (4851561103523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2425780553261 + 2425780553262.

It is an arithmetic number, because the mean of its divisors is an integer number (2425780553262).

Almost surely, 2^{4851561106523} is an apocalyptic number.

4851561106523 is a deficient number, since it is larger than the sum of its proper divisors (1).

4851561106523 is an equidigital number, since it uses as much as digits as its factorization.

4851561106523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 4851561106523 in words is "four trillion, eight hundred fifty-one billion, five hundred sixty-one million, one hundred six thousand, five hundred twenty-three".