26672621656576 has 160 divisors (see below), whose sum is σ = 61080096337920. Its totient is φ = 11398572896256.

The previous prime is 26672621656559. The next prime is 26672621656621. The reversal of 26672621656576 is 67565612627662.

It is a super-2 number, since 2×26672621656576² (a number of 28 digits) contains 22 as substring.

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, 2483710215 + ... + 2483720953.

It is an arithmetic number, because the mean of its divisors is an integer number (381750602112).

Almost surely, 2^{26672621656576} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26672621656576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30540048168960).

26672621656576 is an abundant number, since it is smaller than the sum of its proper divisors (34407474681344).

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

26672621656576 is a wasteful number, since it uses less digits than its factorization.

26672621656576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12674 (or 12658 counting only the distinct ones).

The product of its digits is 457228800, while the sum is 67.

The spelling of 26672621656576 in words is "twenty-six trillion, six hundred seventy-two billion, six hundred twenty-one million, six hundred fifty-six thousand, five hundred seventy-six".