127640103569 has 8 divisors (see below), whose sum is σ = 140394525600. Its totient is φ = 116036456580.

The previous prime is 127640103529. The next prime is 127640103571. The reversal of 127640103569 is 965301046721.

It is not a de Polignac number, because 127640103569 - 2¹² = 127640099473 is a prime.

It is a super-2 number, since 2×127640103569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127640103509) 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, 47947619 + ... + 47950280.

It is an arithmetic number, because the mean of its divisors is an integer number (17549315700).

Almost surely, 2^127640103569 is an apocalyptic number.

It is an amenable number.

127640103569 is a deficient number, since it is larger than the sum of its proper divisors (12754422031).

127640103569 is an frugal number, since it uses more digits than its factorization.

127640103569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95897932 (or 95897910 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 127640103569 in words is "one hundred twenty-seven billion, six hundred forty million, one hundred three thousand, five hundred sixty-nine".