26444630212660 has 96 divisors (see below), whose sum is σ = 61438504458240. Its totient is φ = 9480327964800.

The previous prime is 26444630212601. The next prime is 26444630212727. The reversal of 26444630212660 is 6621203644462.

It is a self number, because there is not a number n which added to its sum of digits gives 26444630212660.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 612704161 + ... + 612747319.

It is an arithmetic number, because the mean of its divisors is an integer number (639984421440).

Almost surely, 2^{26444630212660} is an apocalyptic number.

26444630212660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26444630212660 is an abundant number, since it is smaller than the sum of its proper divisors (34993874245580).

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

26444630212660 is a wasteful number, since it uses less digits than its factorization.

26444630212660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82477 (or 82475 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 26444630212660 in words is "twenty-six trillion, four hundred forty-four billion, six hundred thirty million, two hundred twelve thousand, six hundred sixty".