63401855468 has 24 divisors (see below), whose sum is σ = 126908316192. Its totient is φ = 27149808384.

The previous prime is 63401855467. The next prime is 63401855483. The reversal of 63401855468 is 86455810436.

63401855468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63401855468² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63401855467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899405 + ... + 967332.

It is an arithmetic number, because the mean of its divisors is an integer number (5287846508).

Almost surely, 2^63401855468 is an apocalyptic number.

It is an amenable number.

63401855468 is an abundant number, since it is smaller than the sum of its proper divisors (63506460724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63401855468 is a wasteful number, since it uses less digits than its factorization.

63401855468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867961 (or 1867959 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 63401855468 in words is "sixty-three billion, four hundred one million, eight hundred fifty-five thousand, four hundred sixty-eight".