70542712171 has 2 divisors, whose sum is σ = 70542712172. Its totient is φ = 70542712170.

The previous prime is 70542712169. The next prime is 70542712183. The reversal of 70542712171 is 17121724507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70542712171 - 2¹ = 70542712169 is a prime.

Together with 70542712169, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 70542712171.

It is not a weakly prime, because it can be changed into another prime (70542712111) 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, 35271356085 + 35271356086.

It is an arithmetic number, because the mean of its divisors is an integer number (35271356086).

Almost surely, 2^70542712171 is an apocalyptic number.

70542712171 is a deficient number, since it is larger than the sum of its proper divisors (1).

70542712171 is an equidigital number, since it uses as much as digits as its factorization.

70542712171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27440, while the sum is 37.

The spelling of 70542712171 in words is "seventy billion, five hundred forty-two million, seven hundred twelve thousand, one hundred seventy-one".