9999998272 has 28 divisors (see below), whose sum is σ = 21647725056. Its totient is φ = 4545453440.

The previous prime is 9999998269. The next prime is 9999998273. The reversal of 9999998272 is 2728999999.

It is a junction number, because it is equal to n+sod(n) for n = 9999998195 and 9999998204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999998273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7101568 + ... + 7102975.

Almost surely, 2^9999998272 is an apocalyptic number.

It is an amenable number.

9999998272 is an abundant number, since it is smaller than the sum of its proper divisors (11647726784).

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

9999998272 is a wasteful number, since it uses less digits than its factorization.

9999998272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14204566 (or 14204556 counting only the distinct ones).

The product of its digits is 119042784, while the sum is 73.

The square root of 9999998272 is about 99999.9913599996. The cubic root of 9999998272 is about 2154.4345659364.

It can be divided in two parts, 999999 and 8272, that multiplied together give a palindrome (8271991728).

The spelling of 9999998272 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-eight thousand, two hundred seventy-two".