122871528668 has 48 divisors (see below), whose sum is σ = 252656409600. Its totient is φ = 51192837696.

The previous prime is 122871528641. The next prime is 122871528709. The reversal of 122871528668 is 866825178221.

It is a super-2 number, since 2×122871528668² (a number of 23 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117230 + ... + 509397.

It is an arithmetic number, because the mean of its divisors is an integer number (5263675200).

Almost surely, 2^122871528668 is an apocalyptic number.

It is an amenable number.

122871528668 is an abundant number, since it is smaller than the sum of its proper divisors (129784880932).

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

122871528668 is a wasteful number, since it uses less digits than its factorization.

122871528668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626834 (or 626832 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 56.

The spelling of 122871528668 in words is "one hundred twenty-two billion, eight hundred seventy-one million, five hundred twenty-eight thousand, six hundred sixty-eight".