68078065564726 has 32 divisors (see below), whose sum is σ = 122850811157760. Its totient is φ = 27640004188896.

The previous prime is 68078065564661. The next prime is 68078065564807. The reversal of 68078065564726 is 62746556087086.

It is a happy number.

It is a super-2 number, since 2×68078065564726² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7069345 + ... + 13643011.

It is an arithmetic number, because the mean of its divisors is an integer number (3839087848680).

Almost surely, 2^{68078065564726} is an apocalyptic number.

68078065564726 is a deficient number, since it is larger than the sum of its proper divisors (54772745593034).

68078065564726 is a wasteful number, since it uses less digits than its factorization.

68078065564726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6612628.

The product of its (nonzero) digits is 812851200, while the sum is 70.

The spelling of 68078065564726 in words is "sixty-eight trillion, seventy-eight billion, sixty-five million, five hundred sixty-four thousand, seven hundred twenty-six".