74317731757 has 2 divisors, whose sum is σ = 74317731758. Its totient is φ = 74317731756.

The previous prime is 74317731739. The next prime is 74317731781. The reversal of 74317731757 is 75713771347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66507767881 + 7809963876 = 257891^2 + 88374^2 .

It is a cyclic number.

It is not a de Polignac number, because 74317731757 - 2¹⁹ = 74317207469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74317731737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37158865878 + 37158865879.

It is an arithmetic number, because the mean of its divisors is an integer number (37158865879).

Almost surely, 2^74317731757 is an apocalyptic number.

It is an amenable number.

74317731757 is a deficient number, since it is larger than the sum of its proper divisors (1).

74317731757 is an equidigital number, since it uses as much as digits as its factorization.

74317731757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3025260, while the sum is 52.

The spelling of 74317731757 in words is "seventy-four billion, three hundred seventeen million, seven hundred thirty-one thousand, seven hundred fifty-seven".