667876468028 has 48 divisors (see below), whose sum is σ = 1457265755904. Its totient is φ = 260197194240.

The previous prime is 667876468001. The next prime is 667876468033. The reversal of 667876468028 is 820864678766.

It is a super-2 number, since 2×667876468028² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6764876 + ... + 6862892.

It is an arithmetic number, because the mean of its divisors is an integer number (30359703248).

Almost surely, 2^667876468028 is an apocalyptic number.

It is an amenable number.

667876468028 is an abundant number, since it is smaller than the sum of its proper divisors (789389287876).

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

667876468028 is a wasteful number, since it uses less digits than its factorization.

667876468028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120162 (or 120160 counting only the distinct ones).

The product of its (nonzero) digits is 260112384, while the sum is 68.

The spelling of 667876468028 in words is "six hundred sixty-seven billion, eight hundred seventy-six million, four hundred sixty-eight thousand, twenty-eight".