43561223045 has 32 divisors (see below), whose sum is σ = 55582225920. Its totient is φ = 32660812800.

The previous prime is 43561223023. The next prime is 43561223053. The reversal of 43561223045 is 54032216534.

It is not a de Polignac number, because 43561223045 - 2¹⁰ = 43561222021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43561222996 and 43561223014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27587066 + ... + 27588644.

It is an arithmetic number, because the mean of its divisors is an integer number (1736944560).

Almost surely, 2^43561223045 is an apocalyptic number.

It is an amenable number.

43561223045 is a deficient number, since it is larger than the sum of its proper divisors (12021002875).

43561223045 is a wasteful number, since it uses less digits than its factorization.

43561223045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 43561223045 its reverse (54032216534), we get a palindrome (97593439579).

The spelling of 43561223045 in words is "forty-three billion, five hundred sixty-one million, two hundred twenty-three thousand, forty-five".