49388971632647 has 8 divisors (see below), whose sum is σ = 52205915846400. Its totient is φ = 46593779884344.

The previous prime is 49388971632643. The next prime is 49388971632697. The reversal of 49388971632647 is 74623617988394.

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

It is a cyclic number.

It is not a de Polignac number, because 49388971632647 - 2² = 49388971632643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49388971632643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5438111693 + ... + 5438120774.

It is an arithmetic number, because the mean of its divisors is an integer number (6525739480800).

Almost surely, 2^{49388971632647} is an apocalyptic number.

49388971632647 is a deficient number, since it is larger than the sum of its proper divisors (2816944213753).

49388971632647 is a wasteful number, since it uses less digits than its factorization.

49388971632647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10876232725.

The product of its digits is 2633637888, while the sum is 77.

The spelling of 49388971632647 in words is "forty-nine trillion, three hundred eighty-eight billion, nine hundred seventy-one million, six hundred thirty-two thousand, six hundred forty-seven".