45618915389 has 2 divisors, whose sum is σ = 45618915390. Its totient is φ = 45618915388.

The previous prime is 45618915379. The next prime is 45618915413. The reversal of 45618915389 is 98351981654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29778679225 + 15840236164 = 172565^2 + 125858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45618915389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45618915359) 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, 22809457694 + 22809457695.

It is an arithmetic number, because the mean of its divisors is an integer number (22809457695).

Almost surely, 2^45618915389 is an apocalyptic number.

It is an amenable number.

45618915389 is a deficient number, since it is larger than the sum of its proper divisors (1).

45618915389 is an equidigital number, since it uses as much as digits as its factorization.

45618915389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 59.

The spelling of 45618915389 in words is "forty-five billion, six hundred eighteen million, nine hundred fifteen thousand, three hundred eighty-nine".