68154143731850 has 192 divisors, whose sum is σ = 142081106227200. Its totient is φ = 24113552736000.

The previous prime is 68154143731837. The next prime is 68154143731871. The reversal of 68154143731850 is 5813734145186.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9066664292 + ... + 9066671808.

It is an arithmetic number, because the mean of its divisors is an integer number (740005761600).

Almost surely, 2^{68154143731850} is an apocalyptic number.

68154143731850 is an abundant number, since it is smaller than the sum of its proper divisors (73926962495350).

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

68154143731850 is a wasteful number, since it uses less digits than its factorization.

68154143731850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10629 (or 10624 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 68154143731850 in words is "sixty-eight trillion, one hundred fifty-four billion, one hundred forty-three million, seven hundred thirty-one thousand, eight hundred fifty".