5185816137946 has 32 divisors (see below), whose sum is σ = 7848414907200. Its totient is φ = 2569760353536.

The previous prime is 5185816137919. The next prime is 5185816137947. The reversal of 5185816137946 is 6497316185815.

It is not an unprimeable number, because it can be changed into a prime (5185816137947) 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 in 15 ways as a sum of consecutive naturals, for example, 385355250 + ... + 385368706.

It is an arithmetic number, because the mean of its divisors is an integer number (245262965850).

Almost surely, 2^{5185816137946} is an apocalyptic number.

5185816137946 is a deficient number, since it is larger than the sum of its proper divisors (2662598769254).

5185816137946 is a wasteful number, since it uses less digits than its factorization.

5185816137946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16398.

The product of its digits is 43545600, while the sum is 64.

The spelling of 5185816137946 in words is "five trillion, one hundred eighty-five billion, eight hundred sixteen million, one hundred thirty-seven thousand, nine hundred forty-six".