10990601789 has 2 divisors, whose sum is σ = 10990601790. Its totient is φ = 10990601788.

The previous prime is 10990601747. The next prime is 10990601803. The reversal of 10990601789 is 98710609901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9032981764 + 1957620025 = 95042^2 + 44245^2 .

It is an emirp because it is prime and its reverse (98710609901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10990601789 - 2⁸ = 10990601533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10990601389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5495300894 + 5495300895.

It is an arithmetic number, because the mean of its divisors is an integer number (5495300895).

Almost surely, 2^10990601789 is an apocalyptic number.

It is an amenable number.

10990601789 is a deficient number, since it is larger than the sum of its proper divisors (1).

10990601789 is an equidigital number, since it uses as much as digits as its factorization.

10990601789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 50.

The spelling of 10990601789 in words is "ten billion, nine hundred ninety million, six hundred one thousand, seven hundred eighty-nine".