74189883243 has 128 divisors (see below), whose sum is σ = 128888340480. Its totient is φ = 36944087040.

The previous prime is 74189883241. The next prime is 74189883247. The reversal of 74189883243 is 34238898147.

It is not a de Polignac number, because 74189883243 - 2¹ = 74189883241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (74189883241) 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 127 ways as a sum of consecutive naturals, for example, 61161705 + ... + 61162917.

It is an arithmetic number, because the mean of its divisors is an integer number (1006940160).

Almost surely, 2^74189883243 is an apocalyptic number.

74189883243 is a deficient number, since it is larger than the sum of its proper divisors (54698457237).

74189883243 is a wasteful number, since it uses less digits than its factorization.

74189883243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457.

The product of its digits is 9289728, while the sum is 57.

The spelling of 74189883243 in words is "seventy-four billion, one hundred eighty-nine million, eight hundred eighty-three thousand, two hundred forty-three".