99635775649 has 8 divisors (see below), whose sum is σ = 102853463040. Its totient is φ = 96418315200.

The previous prime is 99635775559. The next prime is 99635775671. The reversal of 99635775649 is 94657753699.

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 99635775649 - 2³¹ = 97488292001 is a prime.

It is a super-2 number, since 2×99635775649² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99635775689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674489 + ... + 1732969.

It is an arithmetic number, because the mean of its divisors is an integer number (12856682880).

Almost surely, 2^99635775649 is an apocalyptic number.

It is an amenable number.

99635775649 is a deficient number, since it is larger than the sum of its proper divisors (3217687391).

99635775649 is a wasteful number, since it uses less digits than its factorization.

99635775649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113471.

The product of its digits is 385786800, while the sum is 70.

The spelling of 99635775649 in words is "ninety-nine billion, six hundred thirty-five million, seven hundred seventy-five thousand, six hundred forty-nine".