127531777707 has 6 divisors (see below), whose sum is σ = 184212567812. Its totient is φ = 85021185132.

The previous prime is 127531777693. The next prime is 127531777727. The reversal of 127531777707 is 707777135721.

It is not a de Polignac number, because 127531777707 - 2⁶ = 127531777643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127531777727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7085098753 + ... + 7085098770.

Almost surely, 2^127531777707 is an apocalyptic number.

127531777707 is a deficient number, since it is larger than the sum of its proper divisors (56680790105).

127531777707 is a wasteful number, since it uses less digits than its factorization.

127531777707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14170197529 (or 14170197526 counting only the distinct ones).

The product of its (nonzero) digits is 3529470, while the sum is 54.

The spelling of 127531777707 in words is "one hundred twenty-seven billion, five hundred thirty-one million, seven hundred seventy-seven thousand, seven hundred seven".