74124108389 has 2 divisors, whose sum is σ = 74124108390. Its totient is φ = 74124108388.

The previous prime is 74124108371. The next prime is 74124108433. The reversal of 74124108389 is 98380142147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68534004100 + 5590104289 = 261790^2 + 74767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74124108389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74124104389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37062054194 + 37062054195.

It is an arithmetic number, because the mean of its divisors is an integer number (37062054195).

Almost surely, 2^74124108389 is an apocalyptic number.

It is an amenable number.

74124108389 is a deficient number, since it is larger than the sum of its proper divisors (1).

74124108389 is an equidigital number, since it uses as much as digits as its factorization.

74124108389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 74124108389 in words is "seventy-four billion, one hundred twenty-four million, one hundred eight thousand, three hundred eighty-nine".