45551810881 has 2 divisors, whose sum is σ = 45551810882. Its totient is φ = 45551810880.

The previous prime is 45551810861. The next prime is 45551810921. The reversal of 45551810881 is 18801815554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34143648400 + 11408162481 = 184780^2 + 106809^2 .

It is a cyclic number.

It is not a de Polignac number, because 45551810881 - 2¹¹ = 45551808833 is a prime.

It is a super-2 number, since 2×45551810881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45551810861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22775905440 + 22775905441.

It is an arithmetic number, because the mean of its divisors is an integer number (22775905441).

Almost surely, 2^45551810881 is an apocalyptic number.

It is an amenable number.

45551810881 is a deficient number, since it is larger than the sum of its proper divisors (1).

45551810881 is an equidigital number, since it uses as much as digits as its factorization.

45551810881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256000, while the sum is 46.

The spelling of 45551810881 in words is "forty-five billion, five hundred fifty-one million, eight hundred ten thousand, eight hundred eighty-one".