77867578855342 has 24 divisors (see below), whose sum is σ = 122102754694200. Its totient is φ = 37240323766800.

The previous prime is 77867578855307. The next prime is 77867578855343. The reversal of 77867578855342 is 24355887576877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77867578855343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58698909 + ... + 60010807.

It is an arithmetic number, because the mean of its divisors is an integer number (5087614778925).

Almost surely, 2^{77867578855342} is an apocalyptic number.

77867578855342 is a deficient number, since it is larger than the sum of its proper divisors (44235175838858).

77867578855342 is a wasteful number, since it uses less digits than its factorization.

77867578855342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368048 (or 1368025 counting only the distinct ones).

The product of its digits is 22127616000, while the sum is 82.

The spelling of 77867578855342 in words is "seventy-seven trillion, eight hundred sixty-seven billion, five hundred seventy-eight million, eight hundred fifty-five thousand, three hundred forty-two".