47789336939 has 4 divisors (see below), whose sum is σ = 50600474424. Its totient is φ = 44978199456.

The previous prime is 47789336891. The next prime is 47789336977. The reversal of 47789336939 is 93963398774.

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

It is a cyclic number.

It is not a de Polignac number, because 47789336939 - 2²⁰ = 47788288363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47789332939) 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 3 ways as a sum of consecutive naturals, for example, 1405568717 + ... + 1405568750.

It is an arithmetic number, because the mean of its divisors is an integer number (12650118606).

Almost surely, 2^47789336939 is an apocalyptic number.

47789336939 is a deficient number, since it is larger than the sum of its proper divisors (2811137485).

47789336939 is a wasteful number, since it uses less digits than its factorization.

47789336939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811137484.

The product of its digits is 185177664, while the sum is 68.

The spelling of 47789336939 in words is "forty-seven billion, seven hundred eighty-nine million, three hundred thirty-six thousand, nine hundred thirty-nine".