47438346667 has 4 divisors (see below), whose sum is σ = 47455606000. Its totient is φ = 47421087336.

The previous prime is 47438346623. The next prime is 47438346671. The reversal of 47438346667 is 76664383474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47438346667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47438646667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8625543 + ... + 8631040.

It is an arithmetic number, because the mean of its divisors is an integer number (11863901500).

Almost surely, 2^47438346667 is an apocalyptic number.

47438346667 is a deficient number, since it is larger than the sum of its proper divisors (17259333).

47438346667 is a wasteful number, since it uses less digits than its factorization.

47438346667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17259332.

The product of its digits is 48771072, while the sum is 58.

The spelling of 47438346667 in words is "forty-seven billion, four hundred thirty-eight million, three hundred forty-six thousand, six hundred sixty-seven".