69742017859 has 2 divisors, whose sum is σ = 69742017860. Its totient is φ = 69742017858.

The previous prime is 69742017857. The next prime is 69742017889. The reversal of 69742017859 is 95871024796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69742017859 - 2¹ = 69742017857 is a prime.

Together with 69742017857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (69742017853) 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, 34871008929 + 34871008930.

It is an arithmetic number, because the mean of its divisors is an integer number (34871008930).

Almost surely, 2^69742017859 is an apocalyptic number.

69742017859 is a deficient number, since it is larger than the sum of its proper divisors (1).

69742017859 is an equidigital number, since it uses as much as digits as its factorization.

69742017859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 69742017859 in words is "sixty-nine billion, seven hundred forty-two million, seventeen thousand, eight hundred fifty-nine".