63912171828412 has 24 divisors (see below), whose sum is σ = 112067406813600. Its totient is φ = 31892914274496.

The previous prime is 63912171828359. The next prime is 63912171828509. The reversal of 63912171828412 is 21482817121936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241119289 + ... + 241384207.

It is an arithmetic number, because the mean of its divisors is an integer number (4669475283900).

Almost surely, 2^{63912171828412} is an apocalyptic number.

It is an amenable number.

63912171828412 is a deficient number, since it is larger than the sum of its proper divisors (48155234985188).

63912171828412 is a wasteful number, since it uses less digits than its factorization.

63912171828412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383925 (or 383923 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The spelling of 63912171828412 in words is "sixty-three trillion, nine hundred twelve billion, one hundred seventy-one million, eight hundred twenty-eight thousand, four hundred twelve".