74709195349 has 2 divisors, whose sum is σ = 74709195350. Its totient is φ = 74709195348.

The previous prime is 74709195313. The next prime is 74709195383. The reversal of 74709195349 is 94359190747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48045571249 + 26663624100 = 219193^2 + 163290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74709195349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74709195293 and 74709195302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74709195389) 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, 37354597674 + 37354597675.

It is an arithmetic number, because the mean of its divisors is an integer number (37354597675).

Almost surely, 2^74709195349 is an apocalyptic number.

It is an amenable number.

74709195349 is a deficient number, since it is larger than the sum of its proper divisors (1).

74709195349 is an equidigital number, since it uses as much as digits as its factorization.

74709195349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 74709195349 in words is "seventy-four billion, seven hundred nine million, one hundred ninety-five thousand, three hundred forty-nine".