68125722786 has 160 divisors (see below), whose sum is σ = 177981769152. Its totient is φ = 19247293440.

The previous prime is 68125722733. The next prime is 68125722793. The reversal of 68125722786 is 68722752186.

68125722786 is a `hidden beast` number, since 68 + 1 + 2 + 572 + 2 + 7 + 8 + 6 = 666.

It is a super-2 number, since 2×68125722786² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3230950 + ... + 3251966.

Almost surely, 2^68125722786 is an apocalyptic number.

68125722786 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68125722786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88990884576).

68125722786 is an abundant number, since it is smaller than the sum of its proper divisors (109856046366).

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

68125722786 is a wasteful number, since it uses less digits than its factorization.

68125722786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21166 (or 21157 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 68125722786 in words is "sixty-eight billion, one hundred twenty-five million, seven hundred twenty-two thousand, seven hundred eighty-six".