78546121068 has 48 divisors (see below), whose sum is σ = 192949715840. Its totient is φ = 24800256000.

The previous prime is 78546121021. The next prime is 78546121079. The reversal of 78546121068 is 86012164587.

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, 1728843 + ... + 1773693.

Almost surely, 2^78546121068 is an apocalyptic number.

It is an amenable number.

78546121068 is an abundant number, since it is smaller than the sum of its proper divisors (114403594772).

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

78546121068 is a wasteful number, since it uses less digits than its factorization.

78546121068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52558 (or 52556 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 78546121068 in words is "seventy-eight billion, five hundred forty-six million, one hundred twenty-one thousand, sixty-eight".