127865203136 has 84 divisors (see below), whose sum is σ = 279342006720. Its totient is φ = 58027622400.

The previous prime is 127865203093. The next prime is 127865203181. The reversal of 127865203136 is 631302568721.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4951025 + ... + 4976783.

It is an arithmetic number, because the mean of its divisors is an integer number (3325500080).

Almost surely, 2^127865203136 is an apocalyptic number.

127865203136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127865203136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139671003360).

127865203136 is an abundant number, since it is smaller than the sum of its proper divisors (151476803584).

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

127865203136 is a wasteful number, since it uses less digits than its factorization.

127865203136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26434 (or 26413 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 127865203136 in words is "one hundred twenty-seven billion, eight hundred sixty-five million, two hundred three thousand, one hundred thirty-six".