3516087849961 has 2 divisors, whose sum is σ = 3516087849962. Its totient is φ = 3516087849960.

The previous prime is 3516087849947. The next prime is 3516087850007. The reversal of 3516087849961 is 1699487806153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3397386240000 + 118701609961 = 1843200^2 + 344531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3516087849961 is a prime.

It is not a weakly prime, because it can be changed into another prime (3516087849761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1758043924980 + 1758043924981.

It is an arithmetic number, because the mean of its divisors is an integer number (1758043924981).

Almost surely, 2^{3516087849961} is an apocalyptic number.

It is an amenable number.

3516087849961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3516087849961 is an equidigital number, since it uses as much as digits as its factorization.

3516087849961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 3516087849961 in words is "three trillion, five hundred sixteen billion, eighty-seven million, eight hundred forty-nine thousand, nine hundred sixty-one".