68586665952 has 48 divisors (see below), whose sum is σ = 205759999872. Its totient is φ = 19596190080.

The previous prime is 68586665947. The next prime is 68586665957. The reversal of 68586665952 is 25956668586.

It is an interprime number because it is at equal distance from previous prime (68586665947) and next prime (68586665957).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×68586665952² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68586665957) 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, 51031074 + ... + 51032417.

It is an arithmetic number, because the mean of its divisors is an integer number (4286666664).

Almost surely, 2^68586665952 is an apocalyptic number.

It is an amenable number.

68586665952 is an abundant number, since it is smaller than the sum of its proper divisors (137173333920).

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

68586665952 is a wasteful number, since it uses less digits than its factorization.

68586665952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102063511 (or 102063503 counting only the distinct ones).

The product of its digits is 186624000, while the sum is 66.

The spelling of 68586665952 in words is "sixty-eight billion, five hundred eighty-six million, six hundred sixty-five thousand, nine hundred fifty-two".