63172732471 has 2 divisors, whose sum is σ = 63172732472. Its totient is φ = 63172732470.

The previous prime is 63172732457. The next prime is 63172732507. The reversal of 63172732471 is 17423727136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63172732471 - 2⁹ = 63172731959 is a prime.

It is a super-3 number, since 3×63172732471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63172732421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31586366235 + 31586366236.

It is an arithmetic number, because the mean of its divisors is an integer number (31586366236).

Almost surely, 2^63172732471 is an apocalyptic number.

63172732471 is a deficient number, since it is larger than the sum of its proper divisors (1).

63172732471 is an equidigital number, since it uses as much as digits as its factorization.

63172732471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 43.

The spelling of 63172732471 in words is "sixty-three billion, one hundred seventy-two million, seven hundred thirty-two thousand, four hundred seventy-one".