26668002672 has 60 divisors (see below), whose sum is σ = 78561448680. Its totient is φ = 8421473664.

The previous prime is 26668002667. The next prime is 26668002677. The reversal of 26668002672 is 27620086662.

It is an interprime number because it is at equal distance from previous prime (26668002667) and next prime (26668002677).

It is a super-2 number, since 2×26668002672² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26668002677) 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, 4870803 + ... + 4876274.

It is an arithmetic number, because the mean of its divisors is an integer number (1309357478).

Almost surely, 2^26668002672 is an apocalyptic number.

It is an amenable number.

26668002672 is an abundant number, since it is smaller than the sum of its proper divisors (51893446008).

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

26668002672 is a wasteful number, since it uses less digits than its factorization.

26668002672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9747110 (or 9747101 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 26668002672 in words is "twenty-six billion, six hundred sixty-eight million, two thousand, six hundred seventy-two".