74223153544 has 32 divisors (see below), whose sum is σ = 141241164120. Its totient is φ = 36560042496.

The previous prime is 74223153479. The next prime is 74223153577. The reversal of 74223153544 is 44535132247.

It can be written as a sum of positive squares in 4 ways, for example, as 70029036900 + 4194116644 = 264630^2 + 64762^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74223153497 and 74223153506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423654 + ... + 572650.

Almost surely, 2^74223153544 is an apocalyptic number.

It is an amenable number.

74223153544 is a deficient number, since it is larger than the sum of its proper divisors (67018010576).

74223153544 is a wasteful number, since it uses less digits than its factorization.

74223153544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149929 (or 149925 counting only the distinct ones).

The product of its digits is 403200, while the sum is 40.

The spelling of 74223153544 in words is "seventy-four billion, two hundred twenty-three million, one hundred fifty-three thousand, five hundred forty-four".