47438439673 has 4 divisors (see below), whose sum is σ = 47563607440. Its totient is φ = 47313271908.

The previous prime is 47438439623. The next prime is 47438439683. The reversal of 47438439673 is 37693483474.

47438439673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47438439673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47438439613) 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, 62583315 + ... + 62584072.

It is an arithmetic number, because the mean of its divisors is an integer number (11890901860).

Almost surely, 2^47438439673 is an apocalyptic number.

It is an amenable number.

47438439673 is a deficient number, since it is larger than the sum of its proper divisors (125167767).

47438439673 is a wasteful number, since it uses less digits than its factorization.

47438439673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125167766.

The product of its digits is 36578304, while the sum is 58.

The spelling of 47438439673 in words is "forty-seven billion, four hundred thirty-eight million, four hundred thirty-nine thousand, six hundred seventy-three".