70128076841 has 2 divisors, whose sum is σ = 70128076842. Its totient is φ = 70128076840.

The previous prime is 70128076729. The next prime is 70128076849. The reversal of 70128076841 is 14867082107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64124926441 + 6003150400 = 253229^2 + 77480^2 .

It is a cyclic number.

It is not a de Polignac number, because 70128076841 - 2¹⁰ = 70128075817 is a prime.

It is a super-2 number, since 2×70128076841² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70128076792 and 70128076801.

It is not a weakly prime, because it can be changed into another prime (70128076849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35064038420 + 35064038421.

It is an arithmetic number, because the mean of its divisors is an integer number (35064038421).

Almost surely, 2^70128076841 is an apocalyptic number.

It is an amenable number.

70128076841 is a deficient number, since it is larger than the sum of its proper divisors (1).

70128076841 is an equidigital number, since it uses as much as digits as its factorization.

70128076841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 70128076841 in words is "seventy billion, one hundred twenty-eight million, seventy-six thousand, eight hundred forty-one".