1571431428601 has 2 divisors, whose sum is σ = 1571431428602. Its totient is φ = 1571431428600.

The previous prime is 1571431428599. The next prime is 1571431428607. The reversal of 1571431428601 is 1068241341751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040247005625 + 531184422976 = 1019925^2 + 728824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1571431428601 - 2¹ = 1571431428599 is a prime.

Together with 1571431428599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1571431428607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 785715714300 + 785715714301.

It is an arithmetic number, because the mean of its divisors is an integer number (785715714301).

Almost surely, 2^{1571431428601} is an apocalyptic number.

It is an amenable number.

1571431428601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1571431428601 is an equidigital number, since it uses as much as digits as its factorization.

1571431428601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 1571431428601 in words is "one trillion, five hundred seventy-one billion, four hundred thirty-one million, four hundred twenty-eight thousand, six hundred one".