74123846257 has 2 divisors, whose sum is σ = 74123846258. Its totient is φ = 74123846256.

The previous prime is 74123846231. The next prime is 74123846309. The reversal of 74123846257 is 75264832147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72808768561 + 1315077696 = 269831^2 + 36264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74123846257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74123846257.

It is not a weakly prime, because it can be changed into another prime (74123846207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37061923128 + 37061923129.

It is an arithmetic number, because the mean of its divisors is an integer number (37061923129).

Almost surely, 2^74123846257 is an apocalyptic number.

It is an amenable number.

74123846257 is a deficient number, since it is larger than the sum of its proper divisors (1).

74123846257 is an equidigital number, since it uses as much as digits as its factorization.

74123846257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 49.

The spelling of 74123846257 in words is "seventy-four billion, one hundred twenty-three million, eight hundred forty-six thousand, two hundred fifty-seven".