10000000998 has 48 divisors (see below), whose sum is σ = 24561416880. Its totient is φ = 2914978752.

The previous prime is 10000000993. The next prime is 10000000999. The reversal of 10000000998 is 89900000001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000000991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1120161 + ... + 1129052.

It is an arithmetic number, because the mean of its divisors is an integer number (511696185).

Almost surely, 2^10000000998 is an apocalyptic number.

10000000998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10000000998 is an abundant number, since it is smaller than the sum of its proper divisors (14561415882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10000000998 is a wasteful number, since it uses less digits than its factorization.

10000000998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249253 (or 2249250 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

Adding to 10000000998 its reverse (89900000001), we get a palindrome (99900000999).

The spelling of 10000000998 in words is "ten billion, nine hundred ninety-eight", and thus it is an aban number.