127899469800 has 120 divisors (see below), whose sum is σ = 444213862950. Its totient is φ = 34106520960.

The previous prime is 127899469781. The next prime is 127899469801. The reversal of 127899469800 is 8964998721.

127899469800 is a `hidden beast` number, since 1 + 2 + 7 + 8 + 99 + 469 + 80 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 48311160804 + 79588308996 = 219798^2 + 282114^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×127899469800² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127899469801) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3931315 + ... + 3963714.

Almost surely, 2^127899469800 is an apocalyptic number.

127899469800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127899469800 is an abundant number, since it is smaller than the sum of its proper divisors (316314393150).

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

127899469800 is a wasteful number, since it uses less digits than its factorization.

127899469800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895057 (or 7895039 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 127899469800 in words is "one hundred twenty-seven billion, eight hundred ninety-nine million, four hundred sixty-nine thousand, eight hundred".