74840223185 has 32 divisors (see below), whose sum is σ = 116350805760. Its totient is φ = 44878157568.

The previous prime is 74840223113. The next prime is 74840223187. The reversal of 74840223185 is 58132204847.

It is a cyclic number.

It is not a de Polignac number, because 74840223185 - 2¹⁴ = 74840206801 is a prime.

It is a super-2 number, since 2×74840223185² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74840223187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4319882 + ... + 4337171.

It is an arithmetic number, because the mean of its divisors is an integer number (3635962680).

Almost surely, 2^74840223185 is an apocalyptic number.

It is an amenable number.

74840223185 is a deficient number, since it is larger than the sum of its proper divisors (41510582575).

74840223185 is a wasteful number, since it uses less digits than its factorization.

74840223185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657097.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 74840223185 in words is "seventy-four billion, eight hundred forty million, two hundred twenty-three thousand, one hundred eighty-five".