74871068189 has 2 divisors, whose sum is σ = 74871068190. Its totient is φ = 74871068188.

The previous prime is 74871068137. The next prime is 74871068191. The reversal of 74871068189 is 98186017847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39465000964 + 35406067225 = 198658^2 + 188165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74871068189 is a prime.

Together with 74871068191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74871068119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37435534094 + 37435534095.

It is an arithmetic number, because the mean of its divisors is an integer number (37435534095).

Almost surely, 2^74871068189 is an apocalyptic number.

It is an amenable number.

74871068189 is a deficient number, since it is larger than the sum of its proper divisors (1).

74871068189 is an equidigital number, since it uses as much as digits as its factorization.

74871068189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 59.

The spelling of 74871068189 in words is "seventy-four billion, eight hundred seventy-one million, sixty-eight thousand, one hundred eighty-nine".