74489526889 has 8 divisors (see below), whose sum is σ = 76981626792. Its totient is φ = 72029583360.

The previous prime is 74489526887. The next prime is 74489526907. The reversal of 74489526889 is 98862598447.

It can be written as a sum of positive squares in 4 ways, for example, as 396686889 + 74092840000 = 19917^2 + 272200^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74489526889 - 2¹ = 74489526887 is a prime.

It is a super-2 number, since 2×74489526889² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74489526883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8034384 + ... + 8043649.

It is an arithmetic number, because the mean of its divisors is an integer number (9622703349).

Almost surely, 2^74489526889 is an apocalyptic number.

It is an amenable number.

74489526889 is a deficient number, since it is larger than the sum of its proper divisors (2492099903).

74489526889 is a wasteful number, since it uses less digits than its factorization.

74489526889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16078187.

The product of its digits is 278691840, while the sum is 70.

The spelling of 74489526889 in words is "seventy-four billion, four hundred eighty-nine million, five hundred twenty-six thousand, eight hundred eighty-nine".