45089262581 has 4 divisors (see below), whose sum is σ = 49188286464. Its totient is φ = 40990238700.

The previous prime is 45089262523. The next prime is 45089262587. The reversal of 45089262581 is 18526298054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45089262581 - 2¹⁰ = 45089261557 is a prime.

It is a super-2 number, since 2×45089262581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45089262587) 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 3 ways as a sum of consecutive naturals, for example, 2049511925 + ... + 2049511946.

It is an arithmetic number, because the mean of its divisors is an integer number (12297071616).

Almost surely, 2^45089262581 is an apocalyptic number.

It is an amenable number.

45089262581 is a deficient number, since it is larger than the sum of its proper divisors (4099023883).

45089262581 is a wasteful number, since it uses less digits than its factorization.

45089262581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099023882.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 45089262581 in words is "forty-five billion, eighty-nine million, two hundred sixty-two thousand, five hundred eighty-one".