74020012783309 has 2 divisors, whose sum is σ = 74020012783310. Its totient is φ = 74020012783308.

The previous prime is 74020012783271. The next prime is 74020012783331. The reversal of 74020012783309 is 90338721002047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52028133580809 + 21991879202500 = 7213053^2 + 4689550^2 .

It is a cyclic number.

It is not a de Polignac number, because 74020012783309 - 2¹⁹ = 74020012259021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74020012786309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37010006391654 + 37010006391655.

It is an arithmetic number, because the mean of its divisors is an integer number (37010006391655).

Almost surely, 2^{74020012783309} is an apocalyptic number.

It is an amenable number.

74020012783309 is a deficient number, since it is larger than the sum of its proper divisors (1).

74020012783309 is an equidigital number, since it uses as much as digits as its factorization.

74020012783309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 74020012783309 in words is "seventy-four trillion, twenty billion, twelve million, seven hundred eighty-three thousand, three hundred nine".