70008356281 has 2 divisors, whose sum is σ = 70008356282. Its totient is φ = 70008356280.

The previous prime is 70008356273. The next prime is 70008356309. The reversal of 70008356281 is 18265380007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56432378025 + 13575978256 = 237555^2 + 116516^2 .

It is a cyclic number.

It is not a de Polignac number, because 70008356281 - 2³ = 70008356273 is a prime.

It is a super-2 number, since 2×70008356281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70008356381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35004178140 + 35004178141.

It is an arithmetic number, because the mean of its divisors is an integer number (35004178141).

Almost surely, 2^70008356281 is an apocalyptic number.

It is an amenable number.

70008356281 is a deficient number, since it is larger than the sum of its proper divisors (1).

70008356281 is an equidigital number, since it uses as much as digits as its factorization.

70008356281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 70008356281 in words is "seventy billion, eight million, three hundred fifty-six thousand, two hundred eighty-one".