99450037449 has 27 divisors (see below), whose sum is σ = 167114252487. Its totient is φ = 56824808544.

The previous prime is 99450037409. The next prime is 99450037457. The reversal of 99450037449 is 94473005499.

The square root of 99450037449 is 315357.

It is a perfect power (a square), and thus also a powerful number.

99450037449 is a `hidden beast` number, since 9 + 94 + 500 + 3 + 7 + 4 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 33725486025 + 65724551424 = 183645^2 + 256368^2 .

It is a de Polignac number, because none of the positive numbers 2^k-99450037449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99450037395 and 99450037404.

It is not an unprimeable number, because it can be changed into a prime (99450037409) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6614989 + ... + 6630005.

Almost surely, 2^99450037449 is an apocalyptic number.

99450037449 is the 315357-th square number.

99450037449 is the 157679-th centered octagonal number.

It is an amenable number.

99450037449 is a deficient number, since it is larger than the sum of its proper divisors (67664215038).

99450037449 is an frugal number, since it uses more digits than its factorization.

99450037449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30054 (or 15027 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 99450037449 in words is "ninety-nine billion, four hundred fifty million, thirty-seven thousand, four hundred forty-nine".