9902593989 has 24 divisors (see below), whose sum is σ = 14647651200. Its totient is φ = 6444884160.

The previous prime is 9902593933. The next prime is 9902593991. The reversal of 9902593989 is 9893952099.

It is not a de Polignac number, because 9902593989 - 2¹⁷ = 9902462917 is a prime.

It is a super-2 number, since 2×9902593989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9902593999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14967 + ... + 141524.

It is an arithmetic number, because the mean of its divisors is an integer number (610318800).

Almost surely, 2^9902593989 is an apocalyptic number.

It is an amenable number.

9902593989 is a deficient number, since it is larger than the sum of its proper divisors (4745057211).

9902593989 is a wasteful number, since it uses less digits than its factorization.

9902593989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156665 (or 156662 counting only the distinct ones).

The product of its (nonzero) digits is 14171760, while the sum is 63.

The square root of 9902593989 is about 99511.7781420873. The cubic root of 9902593989 is about 2147.4166909867.

The spelling of 9902593989 in words is "nine billion, nine hundred two million, five hundred ninety-three thousand, nine hundred eighty-nine".