45707017781 has 2 divisors, whose sum is σ = 45707017782. Its totient is φ = 45707017780.

The previous prime is 45707017721. The next prime is 45707017801. The reversal of 45707017781 is 18771070754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45354517156 + 352500625 = 212966^2 + 18775^2 .

It is a cyclic number.

It is not a de Polignac number, because 45707017781 - 2²⁶ = 45639908917 is a prime.

It is a super-2 number, since 2×45707017781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45707017721) 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, 22853508890 + 22853508891.

It is an arithmetic number, because the mean of its divisors is an integer number (22853508891).

Almost surely, 2^45707017781 is an apocalyptic number.

It is an amenable number.

45707017781 is a deficient number, since it is larger than the sum of its proper divisors (1).

45707017781 is an equidigital number, since it uses as much as digits as its factorization.

45707017781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384160, while the sum is 47.

The spelling of 45707017781 in words is "forty-five billion, seven hundred seven million, seventeen thousand, seven hundred eighty-one".