127073776677 has 4 divisors (see below), whose sum is σ = 169431702240. Its totient is φ = 84715851116.

The previous prime is 127073776649. The next prime is 127073776679. The reversal of 127073776677 is 776677370721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 127073776677 - 2⁸ = 127073776421 is a prime.

It is a super-2 number, since 2×127073776677² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 127073776677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127073776679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21178962777 + ... + 21178962782.

It is an arithmetic number, because the mean of its divisors is an integer number (42357925560).

Almost surely, 2^127073776677 is an apocalyptic number.

It is an amenable number.

127073776677 is a deficient number, since it is larger than the sum of its proper divisors (42357925563).

127073776677 is an equidigital number, since it uses as much as digits as its factorization.

127073776677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42357925562.

The product of its (nonzero) digits is 25412184, while the sum is 60.

The spelling of 127073776677 in words is "one hundred twenty-seven billion, seventy-three million, seven hundred seventy-six thousand, six hundred seventy-seven".