2171427503471 has 2 divisors, whose sum is σ = 2171427503472. Its totient is φ = 2171427503470.

The previous prime is 2171427503459. The next prime is 2171427503537. The reversal of 2171427503471 is 1743057241712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2171427503471 - 2³⁸ = 1896549596527 is a prime.

It is a super-3 number, since 3×2171427503471³ (a number of 38 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2171427503411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085713751735 + 1085713751736.

It is an arithmetic number, because the mean of its divisors is an integer number (1085713751736).

Almost surely, 2^{2171427503471} is an apocalyptic number.

2171427503471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171427503471 is an equidigital number, since it uses as much as digits as its factorization.

2171427503471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 2171427503471 in words is "two trillion, one hundred seventy-one billion, four hundred twenty-seven million, five hundred three thousand, four hundred seventy-one".