47138994589 has 2 divisors, whose sum is σ = 47138994590. Its totient is φ = 47138994588.

The previous prime is 47138994521. The next prime is 47138994613. The reversal of 47138994589 is 98549983174.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35272596100 + 11866398489 = 187810^2 + 108933^2 .

It is a cyclic number.

It is not a de Polignac number, because 47138994589 - 2²³ = 47130605981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47138994389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23569497294 + 23569497295.

It is an arithmetic number, because the mean of its divisors is an integer number (23569497295).

Almost surely, 2^47138994589 is an apocalyptic number.

It is an amenable number.

47138994589 is a deficient number, since it is larger than the sum of its proper divisors (1).

47138994589 is an equidigital number, since it uses as much as digits as its factorization.

47138994589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 67.

The spelling of 47138994589 in words is "forty-seven billion, one hundred thirty-eight million, nine hundred ninety-four thousand, five hundred eighty-nine".