47312039989 has 2 divisors, whose sum is σ = 47312039990. Its totient is φ = 47312039988.

The previous prime is 47312039923. The next prime is 47312040007. The reversal of 47312039989 is 98993021374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47117214225 + 194825764 = 217065^2 + 13958^2 .

It is a cyclic number.

It is not a de Polignac number, because 47312039989 - 2¹⁵ = 47312007221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47312031989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23656019994 + 23656019995.

It is an arithmetic number, because the mean of its divisors is an integer number (23656019995).

Almost surely, 2^47312039989 is an apocalyptic number.

It is an amenable number.

47312039989 is a deficient number, since it is larger than the sum of its proper divisors (1).

47312039989 is an equidigital number, since it uses as much as digits as its factorization.

47312039989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 47312039989 in words is "forty-seven billion, three hundred twelve million, thirty-nine thousand, nine hundred eighty-nine".