45394272013 has 2 divisors, whose sum is σ = 45394272014. Its totient is φ = 45394272012.

The previous prime is 45394271983. The next prime is 45394272037. The reversal of 45394272013 is 31027249354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34591164169 + 10803107844 = 185987^2 + 103938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45394272013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45394272043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22697136006 + 22697136007.

It is an arithmetic number, because the mean of its divisors is an integer number (22697136007).

Almost surely, 2^45394272013 is an apocalyptic number.

It is an amenable number.

45394272013 is a deficient number, since it is larger than the sum of its proper divisors (1).

45394272013 is an equidigital number, since it uses as much as digits as its factorization.

45394272013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 45394272013 in words is "forty-five billion, three hundred ninety-four million, two hundred seventy-two thousand, thirteen".