70706535409 has 2 divisors, whose sum is σ = 70706535410. Its totient is φ = 70706535408.

The previous prime is 70706535401. The next prime is 70706535413. The reversal of 70706535409 is 90453560707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56526489009 + 14180046400 = 237753^2 + 119080^2 .

It is a cyclic number.

It is not a de Polignac number, because 70706535409 - 2³ = 70706535401 is a prime.

It is not a weakly prime, because it can be changed into another prime (70706535401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35353267704 + 35353267705.

It is an arithmetic number, because the mean of its divisors is an integer number (35353267705).

Almost surely, 2^70706535409 is an apocalyptic number.

It is an amenable number.

70706535409 is a deficient number, since it is larger than the sum of its proper divisors (1).

70706535409 is an equidigital number, since it uses as much as digits as its factorization.

70706535409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 70706535409 in words is "seventy billion, seven hundred six million, five hundred thirty-five thousand, four hundred nine".