74668809385 has 8 divisors (see below), whose sum is σ = 94873310856. Its totient is φ = 56221221120.

The previous prime is 74668809359. The next prime is 74668809409. The reversal of 74668809385 is 58390886647.

It can be written as a sum of positive squares in 4 ways, for example, as 15672285721 + 58996523664 = 125189^2 + 242892^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74668809385 - 2⁵ = 74668809353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439228206 + ... + 439228375.

It is an arithmetic number, because the mean of its divisors is an integer number (11859163857).

Almost surely, 2^74668809385 is an apocalyptic number.

It is an amenable number.

74668809385 is a deficient number, since it is larger than the sum of its proper divisors (20204501471).

74668809385 is a wasteful number, since it uses less digits than its factorization.

74668809385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878456603.

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 74668809385 in words is "seventy-four billion, six hundred sixty-eight million, eight hundred nine thousand, three hundred eighty-five".