10909191929 has 2 divisors, whose sum is σ = 10909191930. Its totient is φ = 10909191928.

The previous prime is 10909191913. The next prime is 10909192027. The reversal of 10909191929 is 92919190901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5700250000 + 5208941929 = 75500^2 + 72173^2 .

It is a cyclic number.

It is not a de Polignac number, because 10909191929 - 2⁴ = 10909191913 is a prime.

It is not a weakly prime, because it can be changed into another prime (10909196929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5454595964 + 5454595965.

It is an arithmetic number, because the mean of its divisors is an integer number (5454595965).

Almost surely, 2^10909191929 is an apocalyptic number.

It is an amenable number.

10909191929 is a deficient number, since it is larger than the sum of its proper divisors (1).

10909191929 is an equidigital number, since it uses as much as digits as its factorization.

10909191929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118098, while the sum is 50.

The spelling of 10909191929 in words is "ten billion, nine hundred nine million, one hundred ninety-one thousand, nine hundred twenty-nine".