63504140438 has 16 divisors (see below), whose sum is σ = 95841718560. Its totient is φ = 31556961216.

The previous prime is 63504140419. The next prime is 63504140449. The reversal of 63504140438 is 83404140536.

It is a happy number.

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, 3031970 + ... + 3052842.

It is an arithmetic number, because the mean of its divisors is an integer number (5990107410).

Almost surely, 2^63504140438 is an apocalyptic number.

63504140438 is a deficient number, since it is larger than the sum of its proper divisors (32337578122).

63504140438 is a wasteful number, since it uses less digits than its factorization.

63504140438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30151.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 63504140438 in words is "sixty-three billion, five hundred four million, one hundred forty thousand, four hundred thirty-eight".