127561145613 has 8 divisors (see below), whose sum is σ = 185543484576. Its totient is φ = 77309785200.

The previous prime is 127561145609. The next prime is 127561145623. The reversal of 127561145613 is 316541165721.

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

It is not a de Polignac number, because 127561145613 - 2² = 127561145609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127561145623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932744598 + ... + 1932744663.

It is an arithmetic number, because the mean of its divisors is an integer number (23192935572).

Almost surely, 2^127561145613 is an apocalyptic number.

It is an amenable number.

127561145613 is a deficient number, since it is larger than the sum of its proper divisors (57982338963).

127561145613 is a wasteful number, since it uses less digits than its factorization.

127561145613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865489275.

The product of its digits is 151200, while the sum is 42.

The spelling of 127561145613 in words is "one hundred twenty-seven billion, five hundred sixty-one million, one hundred forty-five thousand, six hundred thirteen".