127538943763544 has 32 divisors (see below), whose sum is σ = 247385489191200. Its totient is φ = 61569549619200.

The previous prime is 127538943763501. The next prime is 127538943763579. The reversal of 127538943763544 is 445367349835721.

It is a happy number.

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, 10438469 + ... + 19079819.

It is an arithmetic number, because the mean of its divisors is an integer number (7730796537225).

Almost surely, 2^{127538943763544} is an apocalyptic number.

It is an amenable number.

127538943763544 is a deficient number, since it is larger than the sum of its proper divisors (119846545427656).

127538943763544 is a wasteful number, since it uses less digits than its factorization.

127538943763544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8705003 (or 8704999 counting only the distinct ones).

The product of its digits is 1828915200, while the sum is 71.

The spelling of 127538943763544 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-four".