210909343029 has 16 divisors (see below), whose sum is σ = 350602544640. Its totient is φ = 109563294960.

The previous prime is 210909343013. The next prime is 210909343069. The reversal of 210909343029 is 920343909012.

210909343029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210909343029 - 2⁴ = 210909343013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210909343069) 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 in 15 ways as a sum of consecutive naturals, for example, 456513499 + ... + 456513960.

It is an arithmetic number, because the mean of its divisors is an integer number (21912659040).

Almost surely, 2^210909343029 is an apocalyptic number.

It is an amenable number.

210909343029 is a deficient number, since it is larger than the sum of its proper divisors (139693201611).

210909343029 is a wasteful number, since it uses less digits than its factorization.

210909343029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913027480.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 210909343029 in words is "two hundred ten billion, nine hundred nine million, three hundred forty-three thousand, twenty-nine".