864990676968 has 32 divisors (see below), whose sum is σ = 2359065483360. Its totient is φ = 262118386880.

The previous prime is 864990676961. The next prime is 864990677011. The reversal of 864990676968 is 869676099468.

It is a junction number, because it is equal to n+sod(n) for n = 864990676893 and 864990676902.

It is not an unprimeable number, because it can be changed into a prime (864990676961) 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, 1638239655 + ... + 1638240182.

It is an arithmetic number, because the mean of its divisors is an integer number (73720796355).

Almost surely, 2^864990676968 is an apocalyptic number.

864990676968 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

864990676968 is an abundant number, since it is smaller than the sum of its proper divisors (1494074806392).

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

864990676968 is a wasteful number, since it uses less digits than its factorization.

864990676968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276479857 (or 3276479853 counting only the distinct ones).

The product of its (nonzero) digits is 1693052928, while the sum is 78.

The spelling of 864990676968 in words is "eight hundred sixty-four billion, nine hundred ninety million, six hundred seventy-six thousand, nine hundred sixty-eight".