45545964091 has 2 divisors, whose sum is σ = 45545964092. Its totient is φ = 45545964090.

The previous prime is 45545964071. The next prime is 45545964109. The reversal of 45545964091 is 19046954554.

Together with next prime (45545964109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45545964091 - 2²³ = 45537575483 is a prime.

It is a super-2 number, since 2×45545964091² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45545964041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772982045 + 22772982046.

It is an arithmetic number, because the mean of its divisors is an integer number (22772982046).

Almost surely, 2^45545964091 is an apocalyptic number.

45545964091 is a deficient number, since it is larger than the sum of its proper divisors (1).

45545964091 is an equidigital number, since it uses as much as digits as its factorization.

45545964091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 45545964091 in words is "forty-five billion, five hundred forty-five million, nine hundred sixty-four thousand, ninety-one".