45168703637 has 2 divisors, whose sum is σ = 45168703638. Its totient is φ = 45168703636.

The previous prime is 45168703627. The next prime is 45168703711. The reversal of 45168703637 is 73630786154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44474170321 + 694533316 = 210889^2 + 26354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45168703637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45168703627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22584351818 + 22584351819.

It is an arithmetic number, because the mean of its divisors is an integer number (22584351819).

Almost surely, 2^45168703637 is an apocalyptic number.

It is an amenable number.

45168703637 is a deficient number, since it is larger than the sum of its proper divisors (1).

45168703637 is an equidigital number, since it uses as much as digits as its factorization.

45168703637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 45168703637 in words is "forty-five billion, one hundred sixty-eight million, seven hundred three thousand, six hundred thirty-seven".