811268429 has 2 divisors, whose sum is σ = 811268430. Its totient is φ = 811268428.

The previous prime is 811268413. The next prime is 811268503. The reversal of 811268429 is 924862118.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660592804 + 150675625 = 25702^2 + 12275^2 .

It is a cyclic number.

It is not a de Polignac number, because 811268429 - 2⁴ = 811268413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813268429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405634214 + 405634215.

It is an arithmetic number, because the mean of its divisors is an integer number (405634215).

Almost surely, 2^811268429 is an apocalyptic number.

It is an amenable number.

811268429 is a deficient number, since it is larger than the sum of its proper divisors (1).

811268429 is an equidigital number, since it uses as much as digits as its factorization.

811268429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 41.

The square root of 811268429 is about 28482.7742504132. The cubic root of 811268429 is about 932.6560787365.

The spelling of 811268429 in words is "eight hundred eleven million, two hundred sixty-eight thousand, four hundred twenty-nine".