70980709489 has 2 divisors, whose sum is σ = 70980709490. Its totient is φ = 70980709488.

The previous prime is 70980709417. The next prime is 70980709511. The reversal of 70980709489 is 98490708907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44559832464 + 26420877025 = 211092^2 + 162545^2 .

It is an emirp because it is prime and its reverse (98490708907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70980709489 - 2⁷ = 70980709361 is a prime.

It is a super-2 number, since 2×70980709489² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70980704489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35490354744 + 35490354745.

It is an arithmetic number, because the mean of its divisors is an integer number (35490354745).

Almost surely, 2^70980709489 is an apocalyptic number.

It is an amenable number.

70980709489 is a deficient number, since it is larger than the sum of its proper divisors (1).

70980709489 is an equidigital number, since it uses as much as digits as its factorization.

70980709489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 61.

The spelling of 70980709489 in words is "seventy billion, nine hundred eighty million, seven hundred nine thousand, four hundred eighty-nine".