127785748015 has 8 divisors (see below), whose sum is σ = 161413576560. Its totient is φ = 96848145792.

The previous prime is 127785748009. The next prime is 127785748037. The reversal of 127785748015 is 510847587721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127785748015 - 2³ = 127785748007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672556474 + ... + 672556663.

It is an arithmetic number, because the mean of its divisors is an integer number (20176697070).

Almost surely, 2^127785748015 is an apocalyptic number.

127785748015 is a deficient number, since it is larger than the sum of its proper divisors (33627828545).

127785748015 is a wasteful number, since it uses less digits than its factorization.

127785748015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345113161.

The product of its (nonzero) digits is 4390400, while the sum is 55.

The spelling of 127785748015 in words is "one hundred twenty-seven billion, seven hundred eighty-five million, seven hundred forty-eight thousand, fifteen".