26840187761850 has 216 divisors, whose sum is σ = 78012926540640. Its totient is φ = 6597414541440.

The previous prime is 26840187761801. The next prime is 26840187761957. The reversal of 26840187761850 is 5816778104862.

It is a happy number.

26840187761850 is a `hidden beast` number, since 2 + 6 + 8 + 4 + 0 + 1 + 8 + 7 + 7 + 618 + 5 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 10558419 + ... + 12851481.

Almost surely, 2^{26840187761850} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26840187761850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39006463270320).

26840187761850 is an abundant number, since it is smaller than the sum of its proper divisors (51172738778790).

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

26840187761850 is a wasteful number, since it uses less digits than its factorization.

26840187761850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293174 (or 2293129 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 63.

The spelling of 26840187761850 in words is "twenty-six trillion, eight hundred forty billion, one hundred eighty-seven million, seven hundred sixty-one thousand, eight hundred fifty".