68029657074 has 12 divisors (see below), whose sum is σ = 147397590366. Its totient is φ = 22676552352.

The previous prime is 68029657067. The next prime is 68029657093. The reversal of 68029657074 is 47075692086.

68029657074 is a `hidden beast` number, since 68 + 0 + 2 + 9 + 6 + 570 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 67856603049 + 173054025 = 260493^2 + 13155^2 .

It is a super-3 number, since 3×68029657074³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68029657074.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1889712679 + ... + 1889712714.

Almost surely, 2^68029657074 is an apocalyptic number.

68029657074 is an abundant number, since it is smaller than the sum of its proper divisors (79367933292).

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

68029657074 is a wasteful number, since it uses less digits than its factorization.

68029657074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779425401 (or 3779425398 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 68029657074 in words is "sixty-eight billion, twenty-nine million, six hundred fifty-seven thousand, seventy-four".