74438979359 has 24 divisors (see below), whose sum is σ = 78525998208. Its totient is φ = 70539043680.

The previous prime is 74438979343. The next prime is 74438979367. The reversal of 74438979359 is 95397983447.

It is not a de Polignac number, because 74438979359 - 2⁴ = 74438979343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74438972359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8062904 + ... + 8072130.

It is an arithmetic number, because the mean of its divisors is an integer number (3271916592).

Almost surely, 2^74438979359 is an apocalyptic number.

74438979359 is a deficient number, since it is larger than the sum of its proper divisors (4087018849).

74438979359 is an equidigital number, since it uses as much as digits as its factorization.

74438979359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9455 (or 9418 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 68.

The spelling of 74438979359 in words is "seventy-four billion, four hundred thirty-eight million, nine hundred seventy-nine thousand, three hundred fifty-nine".