127601940377 has 2 divisors, whose sum is σ = 127601940378. Its totient is φ = 127601940376.

The previous prime is 127601940359. The next prime is 127601940397. The reversal of 127601940377 is 773049106721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64993893721 + 62608046656 = 254939^2 + 250216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127601940377 is a prime.

It is not a weakly prime, because it can be changed into another prime (127601940397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63800970188 + 63800970189.

It is an arithmetic number, because the mean of its divisors is an integer number (63800970189).

Almost surely, 2^127601940377 is an apocalyptic number.

It is an amenable number.

127601940377 is a deficient number, since it is larger than the sum of its proper divisors (1).

127601940377 is an equidigital number, since it uses as much as digits as its factorization.

127601940377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 47.

The spelling of 127601940377 in words is "one hundred twenty-seven billion, six hundred one million, nine hundred forty thousand, three hundred seventy-seven".