866763832003678 has 16 divisors (see below), whose sum is σ = 1511065276133760. Its totient is φ = 365174108398296.

The previous prime is 866763832003673. The next prime is 866763832003757. The reversal of 866763832003678 is 876300238367668.

It is a self number, because there is not a number n which added to its sum of digits gives 866763832003678.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524675442276 + ... + 524675443927.

It is an arithmetic number, because the mean of its divisors is an integer number (94441579758360).

Almost surely, 2^{866763832003678} is an apocalyptic number.

866763832003678 is a deficient number, since it is larger than the sum of its proper divisors (644301444130082).

866763832003678 is a wasteful number, since it uses less digits than its factorization.

866763832003678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049350886271.

The product of its (nonzero) digits is 1755758592, while the sum is 73.

The spelling of 866763832003678 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, eight hundred thirty-two million, three thousand, six hundred seventy-eight".