69830128212 has 24 divisors (see below), whose sum is σ = 175470578976. Its totient is φ = 21486193248.

The previous prime is 69830128189. The next prime is 69830128267. The reversal of 69830128212 is 21282103896.

It is a super-2 number, since 2×69830128212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223814358 + ... + 223814669.

It is an arithmetic number, because the mean of its divisors is an integer number (7311274124).

Almost surely, 2^69830128212 is an apocalyptic number.

It is an amenable number.

69830128212 is an abundant number, since it is smaller than the sum of its proper divisors (105640450764).

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

69830128212 is a wasteful number, since it uses less digits than its factorization.

69830128212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447629047 (or 447629045 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 69830128212 in words is "sixty-nine billion, eight hundred thirty million, one hundred twenty-eight thousand, two hundred twelve".