74443744377 has 6 divisors (see below), whose sum is σ = 107529853002. Its totient is φ = 49629162912.

The previous prime is 74443744339. The next prime is 74443744387. The reversal of 74443744377 is 77344734447.

It can be written as a sum of positive squares in only one way, i.e., 73057224681 + 1386519696 = 270291^2 + 37236^2 .

It is not a de Polignac number, because 74443744377 - 2⁶ = 74443744313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74443744387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4135763568 + ... + 4135763585.

It is an arithmetic number, because the mean of its divisors is an integer number (17921642167).

Almost surely, 2^74443744377 is an apocalyptic number.

It is an amenable number.

74443744377 is a deficient number, since it is larger than the sum of its proper divisors (33086108625).

74443744377 is a wasteful number, since it uses less digits than its factorization.

74443744377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8271527159 (or 8271527156 counting only the distinct ones).

The product of its digits is 22127616, while the sum is 54.

The spelling of 74443744377 in words is "seventy-four billion, four hundred forty-three million, seven hundred forty-four thousand, three hundred seventy-seven".