74000819209 has 2 divisors, whose sum is σ = 74000819210. Its totient is φ = 74000819208.

The previous prime is 74000819093. The next prime is 74000819227. The reversal of 74000819209 is 90291800047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49538295184 + 24462524025 = 222572^2 + 156405^2 .

It is an emirp because it is prime and its reverse (90291800047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74000819209 - 2¹¹ = 74000817161 is a prime.

It is a super-2 number, since 2×74000819209² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74000813209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37000409604 + 37000409605.

It is an arithmetic number, because the mean of its divisors is an integer number (37000409605).

Almost surely, 2^74000819209 is an apocalyptic number.

It is an amenable number.

74000819209 is a deficient number, since it is larger than the sum of its proper divisors (1).

74000819209 is an equidigital number, since it uses as much as digits as its factorization.

74000819209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 74000819209 in words is "seventy-four billion, eight hundred nineteen thousand, two hundred nine".