26680256173620 has 192 divisors, whose sum is σ = 95095077772800. Its totient is φ = 6083433538560.

The previous prime is 26680256173619. The next prime is 26680256173691. The reversal of 26680256173620 is 2637165208662.

26680256173620 is a `hidden beast` number, since 2 + 6 + 6 + 8 + 0 + 2 + 5 + 6 + 1 + 7 + 3 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7082671 + ... + 10174710.

It is an arithmetic number, because the mean of its divisors is an integer number (495286863400).

Almost surely, 2^{26680256173620} is an apocalyptic number.

26680256173620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26680256173620 is an abundant number, since it is smaller than the sum of its proper divisors (68414821599180).

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

26680256173620 is a wasteful number, since it uses less digits than its factorization.

26680256173620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17257815 (or 17257807 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 26680256173620 in words is "twenty-six trillion, six hundred eighty billion, two hundred fifty-six million, one hundred seventy-three thousand, six hundred twenty".