43901088613 has 2 divisors, whose sum is σ = 43901088614. Its totient is φ = 43901088612.

The previous prime is 43901088593. The next prime is 43901088659. The reversal of 43901088613 is 31688010934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27928425924 + 15972662689 = 167118^2 + 126383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43901088613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43901088613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43901088013) 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, 21950544306 + 21950544307.

It is an arithmetic number, because the mean of its divisors is an integer number (21950544307).

Almost surely, 2^43901088613 is an apocalyptic number.

It is an amenable number.

43901088613 is a deficient number, since it is larger than the sum of its proper divisors (1).

43901088613 is an equidigital number, since it uses as much as digits as its factorization.

43901088613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 43901088613 in words is "forty-three billion, nine hundred one million, eighty-eight thousand, six hundred thirteen".