5081537450009 has 4 divisors (see below), whose sum is σ = 5081550107940. Its totient is φ = 5081524792080.

The previous prime is 5081537449939. The next prime is 5081537450029. The reversal of 5081537450009 is 9000547351805.

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 4226334198025 + 855203251984 = 2055805^2 + 924772^2 .

It is a cyclic number.

It is not a de Polignac number, because 5081537450009 - 2²⁸ = 5081269014553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5081537450029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5706374 + ... + 6536495.

It is an arithmetic number, because the mean of its divisors is an integer number (1270387526985).

Almost surely, 2^{5081537450009} is an apocalyptic number.

It is an amenable number.

5081537450009 is a deficient number, since it is larger than the sum of its proper divisors (12657931).

5081537450009 is a wasteful number, since it uses less digits than its factorization.

5081537450009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12657930.

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 5081537450009 in words is "five trillion, eighty-one billion, five hundred thirty-seven million, four hundred fifty thousand, nine".