70702720897069 has 2 divisors, whose sum is σ = 70702720897070. Its totient is φ = 70702720897068.

The previous prime is 70702720897063. The next prime is 70702720897097. The reversal of 70702720897069 is 96079802720707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57165016170025 + 13537704727044 = 7560755^2 + 3679362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70702720897069 is a prime.

It is a super-2 number, since 2×70702720897069² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70702720897069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70702720897063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35351360448534 + 35351360448535.

It is an arithmetic number, because the mean of its divisors is an integer number (35351360448535).

Almost surely, 2^{70702720897069} is an apocalyptic number.

It is an amenable number.

70702720897069 is a deficient number, since it is larger than the sum of its proper divisors (1).

70702720897069 is an equidigital number, since it uses as much as digits as its factorization.

70702720897069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37340352, while the sum is 64.

The spelling of 70702720897069 in words is "seventy trillion, seven hundred two billion, seven hundred twenty million, eight hundred ninety-seven thousand, sixty-nine".