127234389629 has 2 divisors, whose sum is σ = 127234389630. Its totient is φ = 127234389628.

The previous prime is 127234389487. The next prime is 127234389643. The reversal of 127234389629 is 926983432721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106383607225 + 20850782404 = 326165^2 + 144398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127234389629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127234382629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63617194814 + 63617194815.

It is an arithmetic number, because the mean of its divisors is an integer number (63617194815).

Almost surely, 2^127234389629 is an apocalyptic number.

It is an amenable number.

127234389629 is a deficient number, since it is larger than the sum of its proper divisors (1).

127234389629 is an equidigital number, since it uses as much as digits as its factorization.

127234389629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 56.

The spelling of 127234389629 in words is "one hundred twenty-seven billion, two hundred thirty-four million, three hundred eighty-nine thousand, six hundred twenty-nine".