10198986550 has 12 divisors (see below), whose sum is σ = 18970115076. Its totient is φ = 4079594600.

The previous prime is 10198986533. The next prime is 10198986557. The reversal of 10198986550 is 5568989101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10198986557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101989816 + ... + 101989915.

It is an arithmetic number, because the mean of its divisors is an integer number (1580842923).

Almost surely, 2^10198986550 is an apocalyptic number.

10198986550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10198986550 is a deficient number, since it is larger than the sum of its proper divisors (8771128526).

10198986550 is a wasteful number, since it uses less digits than its factorization.

10198986550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203979743 (or 203979738 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 52.

The spelling of 10198986550 in words is "ten billion, one hundred ninety-eight million, nine hundred eighty-six thousand, five hundred fifty".