63707702138 has 8 divisors (see below), whose sum is σ = 95602910880. Its totient is φ = 31840065180.

The previous prime is 63707702101. The next prime is 63707702141. The reversal of 63707702138 is 83120770736.

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

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, 6887168 + ... + 6896411.

It is an arithmetic number, because the mean of its divisors is an integer number (11950363860).

Almost surely, 2^63707702138 is an apocalyptic number.

63707702138 is a deficient number, since it is larger than the sum of its proper divisors (31895208742).

63707702138 is a wasteful number, since it uses less digits than its factorization.

63707702138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13785892.

The product of its (nonzero) digits is 296352, while the sum is 44.

The spelling of 63707702138 in words is "sixty-three billion, seven hundred seven million, seven hundred two thousand, one hundred thirty-eight".