78338608080 has 40 divisors (see below), whose sum is σ = 242849685792. Its totient is φ = 20890295424.

The previous prime is 78338608039. The next prime is 78338608163. The reversal of 78338608080 is 8080683387.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×78338608080² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163205194 + ... + 163205673.

Almost surely, 2^78338608080 is an apocalyptic number.

It is an amenable number.

78338608080 is an abundant number, since it is smaller than the sum of its proper divisors (164511077712).

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

78338608080 is a wasteful number, since it uses less digits than its factorization.

78338608080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326410883 (or 326410877 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 78338608080 in words is "seventy-eight billion, three hundred thirty-eight million, six hundred eight thousand, eighty".