127561481117 has 24 divisors (see below), whose sum is σ = 152689243392. Its totient is φ = 106192900800.

The previous prime is 127561481111. The next prime is 127561481123. The reversal of 127561481117 is 711184165721.

It is an interprime number because it is at equal distance from previous prime (127561481111) and next prime (127561481123).

It is not a de Polignac number, because 127561481117 - 2¹⁶ = 127561415581 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127561481111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305642 + ... + 590372.

It is an arithmetic number, because the mean of its divisors is an integer number (6362051808).

Almost surely, 2^127561481117 is an apocalyptic number.

It is an amenable number.

127561481117 is a deficient number, since it is larger than the sum of its proper divisors (25127762275).

127561481117 is a wasteful number, since it uses less digits than its factorization.

127561481117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285009 (or 285002 counting only the distinct ones).

The product of its digits is 94080, while the sum is 44.

The spelling of 127561481117 in words is "one hundred twenty-seven billion, five hundred sixty-one million, four hundred eighty-one thousand, one hundred seventeen".