127405886640512 has 16 divisors (see below), whose sum is σ = 253816414791900. Its totient is φ = 63702943320192.

The previous prime is 127405886640379. The next prime is 127405886640517. The reversal of 127405886640512 is 215046688504721.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127405886640517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497679244562 + ... + 497679244817.

Almost surely, 2^{127405886640512} is an apocalyptic number.

It is an amenable number.

127405886640512 is a deficient number, since it is larger than the sum of its proper divisors (126410528151388).

127405886640512 is an frugal number, since it uses more digits than its factorization.

127405886640512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995358489393 (or 995358489381 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 59.

The spelling of 127405886640512 in words is "one hundred twenty-seven trillion, four hundred five billion, eight hundred eighty-six million, six hundred forty thousand, five hundred twelve".