63231432771 has 16 divisors (see below), whose sum is σ = 91020293280. Its totient is φ = 38814604800.

The previous prime is 63231432769. The next prime is 63231432773. The reversal of 63231432771 is 17723413236.

It is an interprime number because it is at equal distance from previous prime (63231432769) and next prime (63231432773).

It is not a de Polignac number, because 63231432771 - 2¹ = 63231432769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (63231432773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2005956 + ... + 2037233.

It is an arithmetic number, because the mean of its divisors is an integer number (5688768330).

Almost surely, 2^63231432771 is an apocalyptic number.

63231432771 is a deficient number, since it is larger than the sum of its proper divisors (27788860509).

63231432771 is a wasteful number, since it uses less digits than its factorization.

63231432771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043606.

The product of its digits is 127008, while the sum is 39.

The spelling of 63231432771 in words is "sixty-three billion, two hundred thirty-one million, four hundred thirty-two thousand, seven hundred seventy-one".