69630085818 has 24 divisors (see below), whose sum is σ = 156067434900. Its totient is φ = 22409682624.

The previous prime is 69630085813. The next prime is 69630085829. The reversal of 69630085818 is 81858003696.

It can be written as a sum of positive squares in 2 ways, for example, as 69172682049 + 457403769 = 263007^2 + 21387^2 .

It is not an unprimeable number, because it can be changed into a prime (69630085813) 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 in 11 ways as a sum of consecutive naturals, for example, 66694963 + ... + 66696006.

Almost surely, 2^69630085818 is an apocalyptic number.

69630085818 is an abundant number, since it is smaller than the sum of its proper divisors (86437349082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69630085818 is a wasteful number, since it uses less digits than its factorization.

69630085818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133391006 (or 133391003 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 69630085818 in words is "sixty-nine billion, six hundred thirty million, eighty-five thousand, eight hundred eighteen".