866763832003674 has 128 divisors (see below), whose sum is σ = 2021162540931072. Its totient is φ = 244884697559040.

The previous prime is 866763832003673. The next prime is 866763832003757. The reversal of 866763832003674 is 476300238367668.

It is a junction number, because it is equal to n+sod(n) for n = 866763832003599 and 866763832003608.

It is not an unprimeable number, because it can be changed into a prime (866763832003673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3106017619 + ... + 3106296665.

It is an arithmetic number, because the mean of its divisors is an integer number (15790332351024).

Almost surely, 2^{866763832003674} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866763832003674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010581270465536).

866763832003674 is an abundant number, since it is smaller than the sum of its proper divisors (1154398708927398).

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

866763832003674 is a wasteful number, since it uses less digits than its factorization.

866763832003674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305060.

The product of its (nonzero) digits is 877879296, while the sum is 69.

The spelling of 866763832003674 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, eight hundred thirty-two million, three thousand, six hundred seventy-four".