127303677730640 has 20 divisors (see below), whose sum is σ = 295981050723924. Its totient is φ = 50921471092224.

The previous prime is 127303677730637. The next prime is 127303677730643. The reversal of 127303677730640 is 46037776303721.

It is an interprime number because it is at equal distance from previous prime (127303677730637) and next prime (127303677730643).

It can be written as a sum of positive squares in 2 ways, for example, as 85785088576576 + 41518589154064 = 9262024^2 + 6443492^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127303677730643) 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, 795647985737 + ... + 795647985896.

Almost surely, 2^{127303677730640} is an apocalyptic number.

127303677730640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127303677730640 is an abundant number, since it is smaller than the sum of its proper divisors (168677372993284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127303677730640 is a wasteful number, since it uses less digits than its factorization.

127303677730640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591295971646 (or 1591295971640 counting only the distinct ones).

The product of its (nonzero) digits is 18670176, while the sum is 56.

The spelling of 127303677730640 in words is "one hundred twenty-seven trillion, three hundred three billion, six hundred seventy-seven million, seven hundred thirty thousand, six hundred forty".