8449619997 has 32 divisors (see below), whose sum is σ = 14313349120. Its totient is φ = 4313165760.

The previous prime is 8449619957. The next prime is 8449620031. The reversal of 8449619997 is 7999169448.

It is not a de Polignac number, because 8449619997 - 2⁶ = 8449619933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8449619957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490747 + ... + 507672.

It is an arithmetic number, because the mean of its divisors is an integer number (447292160).

Almost surely, 2^8449619997 is an apocalyptic number.

It is an amenable number.

8449619997 is a deficient number, since it is larger than the sum of its proper divisors (5863729123).

8449619997 is a wasteful number, since it uses less digits than its factorization.

8449619997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998473.

The product of its digits is 35271936, while the sum is 66.

The square root of 8449619997 is about 91921.8145871806. The cubic root of 8449619997 is about 2036.7875233656.

The spelling of 8449619997 in words is "eight billion, four hundred forty-nine million, six hundred nineteen thousand, nine hundred ninety-seven".