78328208888 has 16 divisors (see below), whose sum is σ = 146868543360. Its totient is φ = 39163264000.

The previous prime is 78328208863. The next prime is 78328208941. The reversal of 78328208888 is 88880282387.

It is a super-2 number, since 2×78328208888² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78328208888.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487913 + ... + 628263.

It is an arithmetic number, because the mean of its divisors is an integer number (9179283960).

Almost surely, 2^78328208888 is an apocalyptic number.

It is an amenable number.

78328208888 is a deficient number, since it is larger than the sum of its proper divisors (68540334472).

78328208888 is a wasteful number, since it uses less digits than its factorization.

78328208888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210118 (or 210114 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 62.

The spelling of 78328208888 in words is "seventy-eight billion, three hundred twenty-eight million, two hundred eight thousand, eight hundred eighty-eight".