127870705818825 has 24 divisors (see below), whose sum is σ = 211413316214496. Its totient is φ = 68197575600000.

The previous prime is 127870705818787. The next prime is 127870705818893. The reversal of 127870705818825 is 528818507078721.

It is not a de Polignac number, because 127870705818825 - 2³⁴ = 127853525949641 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 127870705818825.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45480250 + ... + 48209900.

It is an arithmetic number, because the mean of its divisors is an integer number (8808888175604).

Almost surely, 2^{127870705818825} is an apocalyptic number.

127870705818825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127870705818825 is a deficient number, since it is larger than the sum of its proper divisors (83542610395671).

127870705818825 is a wasteful number, since it uses less digits than its factorization.

127870705818825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354265 (or 3354260 counting only the distinct ones).

The product of its (nonzero) digits is 140492800, while the sum is 69.

The spelling of 127870705818825 in words is "one hundred twenty-seven trillion, eight hundred seventy billion, seven hundred five million, eight hundred eighteen thousand, eight hundred twenty-five".