63838725738 has 8 divisors (see below), whose sum is σ = 127677451488. Its totient is φ = 21279575244.

The previous prime is 63838725719. The next prime is 63838725751. The reversal of 63838725738 is 83752783836.

It is a sphenic number, since it is the product of 3 distinct primes.

63838725738 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5319893806 + ... + 5319893817.

It is an arithmetic number, because the mean of its divisors is an integer number (15959681436).

Almost surely, 2^63838725738 is an apocalyptic number.

63838725738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

63838725738 is a wasteful number, since it uses less digits than its factorization.

63838725738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10639787628.

The product of its digits is 40642560, while the sum is 60.

The spelling of 63838725738 in words is "sixty-three billion, eight hundred thirty-eight million, seven hundred twenty-five thousand, seven hundred thirty-eight".