869195001929 has 2 divisors, whose sum is σ = 869195001930. Its totient is φ = 869195001928.

The previous prime is 869195001901. The next prime is 869195001931. The reversal of 869195001929 is 929100591968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 868996840000 + 198161929 = 932200^2 + 14077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-869195001929 is a prime.

Together with 869195001931, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (869195001979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434597500964 + 434597500965.

It is an arithmetic number, because the mean of its divisors is an integer number (434597500965).

Almost surely, 2^869195001929 is an apocalyptic number.

It is an amenable number.

869195001929 is a deficient number, since it is larger than the sum of its proper divisors (1).

869195001929 is an equidigital number, since it uses as much as digits as its factorization.

869195001929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3149280, while the sum is 59.

The spelling of 869195001929 in words is "eight hundred sixty-nine billion, one hundred ninety-five million, one thousand, nine hundred twenty-nine".