5311006365985 has 4 divisors (see below), whose sum is σ = 6373207639188. Its totient is φ = 4248805092784.

The previous prime is 5311006365971. The next prime is 5311006365997. The reversal of 5311006365985 is 5895636001135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1011649732864 + 4299356633121 = 1005808^2 + 2073489^2 .

It is a cyclic number.

It is not a de Polignac number, because 5311006365985 - 2¹⁷ = 5311006234913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531100636594 + ... + 531100636603.

It is an arithmetic number, because the mean of its divisors is an integer number (1593301909797).

Almost surely, 2^{5311006365985} is an apocalyptic number.

It is an amenable number.

5311006365985 is a deficient number, since it is larger than the sum of its proper divisors (1062201273203).

5311006365985 is a wasteful number, since it uses less digits than its factorization.

5311006365985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062201273202.

The product of its (nonzero) digits is 2916000, while the sum is 52.

The spelling of 5311006365985 in words is "five trillion, three hundred eleven billion, six million, three hundred sixty-five thousand, nine hundred eighty-five".