99996379649 has 8 divisors (see below), whose sum is σ = 102527729640. Its totient is φ = 97469430400.

The previous prime is 99996379627. The next prime is 99996379661. The reversal of 99996379649 is 94697369999.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 135955600 + 99860424049 = 11660^2 + 316007^2 .

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 99996379649 - 2¹² = 99996375553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99996379699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054142 + ... + 1145079.

It is an arithmetic number, because the mean of its divisors is an integer number (12815966205).

Almost surely, 2^99996379649 is an apocalyptic number.

It is an amenable number.

99996379649 is a deficient number, since it is larger than the sum of its proper divisors (2531349991).

99996379649 is a wasteful number, since it uses less digits than its factorization.

99996379649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200371.

The product of its digits is 1607077584, while the sum is 80.

The spelling of 99996379649 in words is "ninety-nine billion, nine hundred ninety-six million, three hundred seventy-nine thousand, six hundred forty-nine".