127405886640379 has 2 divisors, whose sum is σ = 127405886640380. Its totient is φ = 127405886640378.

The previous prime is 127405886640367. The next prime is 127405886640517. The reversal of 127405886640379 is 973046688504721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127405886640379 - 2⁷ = 127405886640251 is a prime.

It is a super-2 number, since 2×127405886640379² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127405886640779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63702943320189 + 63702943320190.

It is an arithmetic number, because the mean of its divisors is an integer number (63702943320190).

It is a 1-persistent number, because it is pandigital, but 2⋅127405886640379 = 254811773280758 is not.

Almost surely, 2^{127405886640379} is an apocalyptic number.

127405886640379 is a deficient number, since it is larger than the sum of its proper divisors (1).

127405886640379 is an equidigital number, since it uses as much as digits as its factorization.

127405886640379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 487710720, while the sum is 70.

The spelling of 127405886640379 in words is "one hundred twenty-seven trillion, four hundred five billion, eight hundred eighty-six million, six hundred forty thousand, three hundred seventy-nine".