70538605069 has 2 divisors, whose sum is σ = 70538605070. Its totient is φ = 70538605068.

The previous prime is 70538605051. The next prime is 70538605117. The reversal of 70538605069 is 96050683507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70179957225 + 358647844 = 264915^2 + 18938^2 .

It is a cyclic number.

It is not a de Polignac number, because 70538605069 - 2⁵ = 70538605037 is a prime.

It is a super-2 number, since 2×70538605069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70538606069) 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, 35269302534 + 35269302535.

It is an arithmetic number, because the mean of its divisors is an integer number (35269302535).

Almost surely, 2^70538605069 is an apocalyptic number.

It is an amenable number.

70538605069 is a deficient number, since it is larger than the sum of its proper divisors (1).

70538605069 is an equidigital number, since it uses as much as digits as its factorization.

70538605069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 70538605069 in words is "seventy billion, five hundred thirty-eight million, six hundred five thousand, sixty-nine".