74506809379 has 2 divisors, whose sum is σ = 74506809380. Its totient is φ = 74506809378.

The previous prime is 74506809341. The next prime is 74506809401. The reversal of 74506809379 is 97390860547.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74506809379 - 2²³ = 74498420771 is a prime.

It is not a weakly prime, because it can be changed into another prime (74506809319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37253404689 + 37253404690.

It is an arithmetic number, because the mean of its divisors is an integer number (37253404690).

Almost surely, 2^74506809379 is an apocalyptic number.

74506809379 is a deficient number, since it is larger than the sum of its proper divisors (1).

74506809379 is an equidigital number, since it uses as much as digits as its factorization.

74506809379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 74506809379 in words is "seventy-four billion, five hundred six million, eight hundred nine thousand, three hundred seventy-nine".