127538943763545 has 64 divisors (see below), whose sum is σ = 238673051654400. Its totient is φ = 64439735016960.

The previous prime is 127538943763501. The next prime is 127538943763579. The reversal of 127538943763545 is 545367349835721.

127538943763545 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 3 + 8 + 9 + 4 + 3 + 76 + 3 + 545 = 666.

It is not a de Polignac number, because 127538943763545 - 2⁶ = 127538943763481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 182929005 + ... + 183624885.

It is an arithmetic number, because the mean of its divisors is an integer number (3729266432100).

Almost surely, 2^{127538943763545} is an apocalyptic number.

127538943763545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127538943763545 is a deficient number, since it is larger than the sum of its proper divisors (111134107890855).

127538943763545 is a wasteful number, since it uses less digits than its factorization.

127538943763545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767367 (or 767361 counting only the distinct ones).

The product of its digits is 2286144000, while the sum is 72.

The spelling of 127538943763545 in words is "one hundred twenty-seven trillion, five hundred thirty-eight billion, nine hundred forty-three million, seven hundred sixty-three thousand, five hundred forty-five".