7449944499447 has 16 divisors (see below), whose sum is σ = 10107617887488. Its totient is φ = 4879967774400.

The previous prime is 7449944499421. The next prime is 7449944499479.

7449944499447 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7449944499447 - 2³⁸ = 7175066592503 is a prime.

It is a super-2 number, since 2×7449944499447² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7449944491447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64615429 + ... + 64730622.

It is an arithmetic number, because the mean of its divisors is an integer number (631726117968).

Almost surely, 2^{7449944499447} is an apocalyptic number.

7449944499447 is a deficient number, since it is larger than the sum of its proper divisors (2657673388041).

7449944499447 is a wasteful number, since it uses less digits than its factorization.

7449944499447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129346390.

The product of its digits is 5267275776, while the sum is 78.

The spelling of 7449944499447 in words is "seven trillion, four hundred forty-nine billion, nine hundred forty-four million, four hundred ninety-nine thousand, four hundred forty-seven".