74489898447 has 24 divisors (see below), whose sum is σ = 108736879680. Its totient is φ = 49134292800.

The previous prime is 74489898403. The next prime is 74489898473.

74489898447 is a `hidden beast` number, since 7 + 4 + 4 + 8 + 98 + 98 + 447 = 666.

74489898447 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74489898447 - 2⁶ = 74489898383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74489898347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1324129 + ... + 1379237.

It is an arithmetic number, because the mean of its divisors is an integer number (4530703320).

Almost surely, 2^74489898447 is an apocalyptic number.

74489898447 is a deficient number, since it is larger than the sum of its proper divisors (34246981233).

74489898447 is a wasteful number, since it uses less digits than its factorization.

74489898447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56703 (or 56700 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 72.

The spelling of 74489898447 in words is "seventy-four billion, four hundred eighty-nine million, eight hundred ninety-eight thousand, four hundred forty-seven".