26104272965550 has 768 divisors, whose sum is σ = 82819199232000. Its totient is φ = 5992466780160.

The previous prime is 26104272965543. The next prime is 26104272965581. The reversal of 26104272965550 is 5556927240162.

26104272965550 is a `hidden beast` number, since 2 + 6 + 1 + 0 + 4 + 2 + 7 + 29 + 65 + 550 = 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 383 ways as a sum of consecutive naturals, for example, 23538568396 + ... + 23538569504.

It is an arithmetic number, because the mean of its divisors is an integer number (107837499000).

Almost surely, 2^{26104272965550} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26104272965550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41409599616000).

26104272965550 is an abundant number, since it is smaller than the sum of its proper divisors (56714926266450).

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

26104272965550 is a wasteful number, since it uses less digits than its factorization.

26104272965550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 26104272965550 in words is "twenty-six trillion, one hundred four billion, two hundred seventy-two million, nine hundred sixty-five thousand, five hundred fifty".