128970604247 has 2 divisors, whose sum is σ = 128970604248. Its totient is φ = 128970604246.

The previous prime is 128970604237. The next prime is 128970604249. The reversal of 128970604247 is 742406079821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128970604247 - 2⁸ = 128970603991 is a prime.

Together with 128970604249, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 128970604195 and 128970604204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128970604249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64485302123 + 64485302124.

It is an arithmetic number, because the mean of its divisors is an integer number (64485302124).

Almost surely, 2^128970604247 is an apocalyptic number.

128970604247 is a deficient number, since it is larger than the sum of its proper divisors (1).

128970604247 is an equidigital number, since it uses as much as digits as its factorization.

128970604247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 128970604247 in words is "one hundred twenty-eight billion, nine hundred seventy million, six hundred four thousand, two hundred forty-seven".