47878322939 has 2 divisors, whose sum is σ = 47878322940. Its totient is φ = 47878322938.

The previous prime is 47878322917. The next prime is 47878322983. The reversal of 47878322939 is 93922387874.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47878322939 is a prime.

It is not a weakly prime, because it can be changed into another prime (47878322039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23939161469 + 23939161470.

It is an arithmetic number, because the mean of its divisors is an integer number (23939161470).

Almost surely, 2^47878322939 is an apocalyptic number.

47878322939 is a deficient number, since it is larger than the sum of its proper divisors (1).

47878322939 is an equidigital number, since it uses as much as digits as its factorization.

47878322939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36578304, while the sum is 62.

The spelling of 47878322939 in words is "forty-seven billion, eight hundred seventy-eight million, three hundred twenty-two thousand, nine hundred thirty-nine".