9899298929989 has 8 divisors (see below), whose sum is σ = 11313539840448. Its totient is φ = 8485071856800.

The previous prime is 9899298929921. The next prime is 9899298929999.

9899298929989 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9899298929989 - 2¹⁹ = 9899298405701 is a prime.

It is a super-2 number, since 2×9899298929989² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9899298929894 and 9899298929903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9899298929999) 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, 1878112 + ... + 4829689.

It is an arithmetic number, because the mean of its divisors is an integer number (1414192480056).

Almost surely, 2^{9899298929989} is an apocalyptic number.

It is an amenable number.

9899298929989 is a deficient number, since it is larger than the sum of its proper divisors (1414240910459).

9899298929989 is a wasteful number, since it uses less digits than its factorization.

9899298929989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918635.

The product of its digits is 88159684608, while the sum is 100.

The spelling of 9899298929989 in words is "nine trillion, eight hundred ninety-nine billion, two hundred ninety-eight million, nine hundred twenty-nine thousand, nine hundred eighty-nine".