127704443947 has 2 divisors, whose sum is σ = 127704443948. Its totient is φ = 127704443946.

The previous prime is 127704443897. The next prime is 127704443957. The reversal of 127704443947 is 749344407721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127704443947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127704443894 and 127704443903.

It is not a weakly prime, because it can be changed into another prime (127704443957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63852221973 + 63852221974.

It is an arithmetic number, because the mean of its divisors is an integer number (63852221974).

Almost surely, 2^127704443947 is an apocalyptic number.

127704443947 is a deficient number, since it is larger than the sum of its proper divisors (1).

127704443947 is an equidigital number, since it uses as much as digits as its factorization.

127704443947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 127704443947 in words is "one hundred twenty-seven billion, seven hundred four million, four hundred forty-three thousand, nine hundred forty-seven".