74501687089 has 2 divisors, whose sum is σ = 74501687090. Its totient is φ = 74501687088.

The previous prime is 74501687083. The next prime is 74501687119. The reversal of 74501687089 is 98078610547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61278527025 + 13223160064 = 247545^2 + 114992^2 .

It is an emirp because it is prime and its reverse (98078610547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74501687089 - 2¹⁵ = 74501654321 is a prime.

It is not a weakly prime, because it can be changed into another prime (74501687083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37250843544 + 37250843545.

It is an arithmetic number, because the mean of its divisors is an integer number (37250843545).

Almost surely, 2^74501687089 is an apocalyptic number.

It is an amenable number.

74501687089 is a deficient number, since it is larger than the sum of its proper divisors (1).

74501687089 is an equidigital number, since it uses as much as digits as its factorization.

74501687089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 74501687089 in words is "seventy-four billion, five hundred one million, six hundred eighty-seven thousand, eighty-nine".