68149007768885 has 8 divisors (see below), whose sum is σ = 82139068395936. Its totient is φ = 54279033499600.

The previous prime is 68149007768879. The next prime is 68149007768899. The reversal of 68149007768885 is 58886770094186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68149007768885 - 2⁴ = 68149007768869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30021588191 + ... + 30021590460.

It is an arithmetic number, because the mean of its divisors is an integer number (10267383549492).

Almost surely, 2^{68149007768885} is an apocalyptic number.

It is an amenable number.

68149007768885 is a deficient number, since it is larger than the sum of its proper divisors (13990060627051).

68149007768885 is a wasteful number, since it uses less digits than its factorization.

68149007768885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60043178883.

The product of its (nonzero) digits is 1300561920, while the sum is 77.

The spelling of 68149007768885 in words is "sixty-eight trillion, one hundred forty-nine billion, seven million, seven hundred sixty-eight thousand, eight hundred eighty-five".