45311938709 has 2 divisors, whose sum is σ = 45311938710. Its totient is φ = 45311938708.

The previous prime is 45311938681. The next prime is 45311938747. The reversal of 45311938709 is 90783911354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36658846225 + 8653092484 = 191465^2 + 93022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45311938709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45311908709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22655969354 + 22655969355.

It is an arithmetic number, because the mean of its divisors is an integer number (22655969355).

Almost surely, 2^45311938709 is an apocalyptic number.

It is an amenable number.

45311938709 is a deficient number, since it is larger than the sum of its proper divisors (1).

45311938709 is an equidigital number, since it uses as much as digits as its factorization.

45311938709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 45311938709 in words is "forty-five billion, three hundred eleven million, nine hundred thirty-eight thousand, seven hundred nine".