45043125581 has 8 divisors (see below), whose sum is σ = 46552243200. Its totient is φ = 43537515120.

The previous prime is 45043125577. The next prime is 45043125587. The reversal of 45043125581 is 18552134054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45043125581 - 2² = 45043125577 is a prime.

It is a super-2 number, since 2×45043125581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45043125587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850661 + ... + 902058.

It is an arithmetic number, because the mean of its divisors is an integer number (5819030400).

Almost surely, 2^45043125581 is an apocalyptic number.

It is an amenable number.

45043125581 is a deficient number, since it is larger than the sum of its proper divisors (1509117619).

45043125581 is a wasteful number, since it uses less digits than its factorization.

45043125581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753579.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 45043125581 in words is "forty-five billion, forty-three million, one hundred twenty-five thousand, five hundred eighty-one".