326860756866 has 40 divisors (see below), whose sum is σ = 837040248000. Its totient is φ = 93388787352.

The previous prime is 326860756837. The next prime is 326860756919. The reversal of 326860756866 is 668657068623.

326860756866 is a `hidden beast` number, since 3 + 2 + 6 + 8 + 6 + 0 + 7 + 568 + 66 = 666.

It is a super-2 number, since 2×326860756866² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 144117366 + ... + 144119633.

It is an arithmetic number, because the mean of its divisors is an integer number (20926006200).

Almost surely, 2^326860756866 is an apocalyptic number.

326860756866 is an abundant number, since it is smaller than the sum of its proper divisors (510179491134).

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

326860756866 is a wasteful number, since it uses less digits than its factorization.

326860756866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288237020 (or 288237011 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 63.

The spelling of 326860756866 in words is "three hundred twenty-six billion, eight hundred sixty million, seven hundred fifty-six thousand, eight hundred sixty-six".