851270045429 has 2 divisors, whose sum is σ = 851270045430. Its totient is φ = 851270045428.

The previous prime is 851270045411. The next prime is 851270045449. The reversal of 851270045429 is 924540072158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 791147986225 + 60122059204 = 889465^2 + 245198^2 .

It is a cyclic number.

It is not a de Polignac number, because 851270045429 - 2⁸ = 851270045173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (851270045449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425635022714 + 425635022715.

It is an arithmetic number, because the mean of its divisors is an integer number (425635022715).

Almost surely, 2^851270045429 is an apocalyptic number.

It is an amenable number.

851270045429 is a deficient number, since it is larger than the sum of its proper divisors (1).

851270045429 is an equidigital number, since it uses as much as digits as its factorization.

851270045429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 851270045429 in words is "eight hundred fifty-one billion, two hundred seventy million, forty-five thousand, four hundred twenty-nine".