63432120375 has 96 divisors (see below), whose sum is σ = 123393221952. Its totient is φ = 31164652800.

The previous prime is 63432120263. The next prime is 63432120377. The reversal of 63432120375 is 57302123436.

63432120375 is a `hidden beast` number, since 63 + 4 + 321 + 203 + 75 = 666.

It is not a de Polignac number, because 63432120375 - 2²⁰ = 63431071799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63432120377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7644729 + ... + 7653021.

It is an arithmetic number, because the mean of its divisors is an integer number (1285346062).

Almost surely, 2^63432120375 is an apocalyptic number.

63432120375 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

63432120375 is a deficient number, since it is larger than the sum of its proper divisors (59961101577).

63432120375 is a wasteful number, since it uses less digits than its factorization.

63432120375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8850 (or 8837 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 63432120375 in words is "sixty-three billion, four hundred thirty-two million, one hundred twenty thousand, three hundred seventy-five".