9801129599 has 4 divisors (see below), whose sum is σ = 9805290264. Its totient is φ = 9796968936.

The previous prime is 9801129551. The next prime is 9801129607. The reversal of 9801129599 is 9959211089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9959211089 = 307 ⋅32440427.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9801129599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9801129599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9801129509) 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, 2076797 + ... + 2081510.

It is an arithmetic number, because the mean of its divisors is an integer number (2451322566).

Almost surely, 2^9801129599 is an apocalyptic number.

9801129599 is a deficient number, since it is larger than the sum of its proper divisors (4160665).

9801129599 is a wasteful number, since it uses less digits than its factorization.

9801129599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160664.

The product of its (nonzero) digits is 524880, while the sum is 53.

The square root of 9801129599 is about 99000.6545382403. The cubic root of 9801129599 is about 2140.0571795215.

The spelling of 9801129599 in words is "nine billion, eight hundred one million, one hundred twenty-nine thousand, five hundred ninety-nine".