3105894420929 has 2 divisors, whose sum is σ = 3105894420930. Its totient is φ = 3105894420928.

The previous prime is 3105894420919. The next prime is 3105894420943. The reversal of 3105894420929 is 9290244985013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2696006370304 + 409888050625 = 1641952^2 + 640225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3105894420929 is a prime.

It is not a weakly prime, because it can be changed into another prime (3105894420919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552947210464 + 1552947210465.

It is an arithmetic number, because the mean of its divisors is an integer number (1552947210465).

Almost surely, 2^{3105894420929} is an apocalyptic number.

It is an amenable number.

3105894420929 is a deficient number, since it is larger than the sum of its proper divisors (1).

3105894420929 is an equidigital number, since it uses as much as digits as its factorization.

3105894420929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 3105894420929 in words is "three trillion, one hundred five billion, eight hundred ninety-four million, four hundred twenty thousand, nine hundred twenty-nine".