70781916041 has 2 divisors, whose sum is σ = 70781916042. Its totient is φ = 70781916040.

The previous prime is 70781915999. The next prime is 70781916043. The reversal of 70781916041 is 14061918707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70439814025 + 342102016 = 265405^2 + 18496^2 .

It is a cyclic number.

It is not a de Polignac number, because 70781916041 - 2³⁴ = 53602046857 is a prime.

It is a super-2 number, since 2×70781916041² (a number of 23 digits) contains 22 as substring.

Together with 70781916043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70781915983 and 70781916001.

It is not a weakly prime, because it can be changed into another prime (70781916043) 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, 35390958020 + 35390958021.

It is an arithmetic number, because the mean of its divisors is an integer number (35390958021).

Almost surely, 2^70781916041 is an apocalyptic number.

It is an amenable number.

70781916041 is a deficient number, since it is larger than the sum of its proper divisors (1).

70781916041 is an equidigital number, since it uses as much as digits as its factorization.

70781916041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 70781916041 in words is "seventy billion, seven hundred eighty-one million, nine hundred sixteen thousand, forty-one".