45854178512209 has 2 divisors, whose sum is σ = 45854178512210. Its totient is φ = 45854178512208.

The previous prime is 45854178512143. The next prime is 45854178512299. The reversal of 45854178512209 is 90221587145854.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45813201417025 + 40977095184 = 6768545^2 + 202428^2 .

It is a cyclic number.

It is not a de Polignac number, because 45854178512209 - 2³³ = 45845588577617 is a prime.

It is not a weakly prime, because it can be changed into another prime (45854178512299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22927089256104 + 22927089256105.

It is an arithmetic number, because the mean of its divisors is an integer number (22927089256105).

Almost surely, 2^{45854178512209} is an apocalyptic number.

It is an amenable number.

45854178512209 is a deficient number, since it is larger than the sum of its proper divisors (1).

45854178512209 is an equidigital number, since it uses as much as digits as its factorization.

45854178512209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256000, while the sum is 61.

The spelling of 45854178512209 in words is "forty-five trillion, eight hundred fifty-four billion, one hundred seventy-eight million, five hundred twelve thousand, two hundred nine".