68185005604 has 6 divisors (see below), whose sum is σ = 119323759814. Its totient is φ = 34092502800.

The previous prime is 68185005589. The next prime is 68185005619. The reversal of 68185005604 is 40650058186.

It is an interprime number because it is at equal distance from previous prime (68185005589) and next prime (68185005619).

It can be written as a sum of positive squares in only one way, i.e., 64261236004 + 3923769600 = 253498^2 + 62640^2 .

It is a super-2 number, since 2×68185005604² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8523125697 + ... + 8523125704.

Almost surely, 2^68185005604 is an apocalyptic number.

It is an amenable number.

68185005604 is a deficient number, since it is larger than the sum of its proper divisors (51138754210).

68185005604 is a wasteful number, since it uses less digits than its factorization.

68185005604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17046251405 (or 17046251403 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 68185005604 in words is "sixty-eight billion, one hundred eighty-five million, five thousand, six hundred four".