74324023985 has 16 divisors (see below), whose sum is σ = 91696894992. Its totient is φ = 57790598400.

The previous prime is 74324023973. The next prime is 74324024057. The reversal of 74324023985 is 58932042347.

It can be written as a sum of positive squares in 8 ways, for example, as 9820215409 + 64503808576 = 99097^2 + 253976^2 .

It is not a de Polignac number, because 74324023985 - 2³⁴ = 57144154801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39386 + ... + 387555.

It is an arithmetic number, because the mean of its divisors is an integer number (5731055937).

Almost surely, 2^74324023985 is an apocalyptic number.

It is an amenable number.

74324023985 is a deficient number, since it is larger than the sum of its proper divisors (17372871007).

74324023985 is a wasteful number, since it uses less digits than its factorization.

74324023985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427924.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 74324023985 in words is "seventy-four billion, three hundred twenty-four million, twenty-three thousand, nine hundred eighty-five".