5105471688818 has 16 divisors (see below), whose sum is σ = 7804911107736. Its totient is φ = 2503861925760.

The previous prime is 5105471688809. The next prime is 5105471688829. The reversal of 5105471688818 is 8188861745015.

It can be written as a sum of positive squares in 4 ways, for example, as 4832096429209 + 273375259609 = 2198203^2 + 522853^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6441923 + ... + 7190918.

Almost surely, 2^{5105471688818} is an apocalyptic number.

5105471688818 is a deficient number, since it is larger than the sum of its proper divisors (2699439418918).

5105471688818 is a wasteful number, since it uses less digits than its factorization.

5105471688818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13636429.

The product of its (nonzero) digits is 17203200, while the sum is 62.

The spelling of 5105471688818 in words is "five trillion, one hundred five billion, four hundred seventy-one million, six hundred eighty-eight thousand, eight hundred eighteen".