45501668309 has 2 divisors, whose sum is σ = 45501668310. Its totient is φ = 45501668308.

The previous prime is 45501668231. The next prime is 45501668321. The reversal of 45501668309 is 90386610554.

It is a happy number.

45501668309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45390302500 + 111365809 = 213050^2 + 10553^2 .

It is a cyclic number.

It is not a de Polignac number, because 45501668309 - 2¹² = 45501664213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45501628309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22750834154 + 22750834155.

It is an arithmetic number, because the mean of its divisors is an integer number (22750834155).

Almost surely, 2^45501668309 is an apocalyptic number.

It is an amenable number.

45501668309 is a deficient number, since it is larger than the sum of its proper divisors (1).

45501668309 is an equidigital number, since it uses as much as digits as its factorization.

45501668309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 47.

It can be divided in two parts, 455016 and 68309, that added together give a palindrome (523325).

The spelling of 45501668309 in words is "forty-five billion, five hundred one million, six hundred sixty-eight thousand, three hundred nine".