45778901117 has 2 divisors, whose sum is σ = 45778901118. Its totient is φ = 45778901116.

The previous prime is 45778901111. The next prime is 45778901137. The reversal of 45778901117 is 71110987754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41188296601 + 4590604516 = 202949^2 + 67754^2 .

It is a cyclic number.

It is not a de Polignac number, because 45778901117 - 2⁸ = 45778900861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45778901111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22889450558 + 22889450559.

It is an arithmetic number, because the mean of its divisors is an integer number (22889450559).

Almost surely, 2^45778901117 is an apocalyptic number.

It is an amenable number.

45778901117 is a deficient number, since it is larger than the sum of its proper divisors (1).

45778901117 is an equidigital number, since it uses as much as digits as its factorization.

45778901117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 50.

The spelling of 45778901117 in words is "forty-five billion, seven hundred seventy-eight million, nine hundred one thousand, one hundred seventeen".