78988898356 has 12 divisors (see below), whose sum is σ = 138675045600. Its totient is φ = 39367456760.

The previous prime is 78988898309. The next prime is 78988898363. The reversal of 78988898356 is 65389888987.

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, 31746706 + ... + 31749193.

It is an arithmetic number, because the mean of its divisors is an integer number (11556253800).

Almost surely, 2^78988898356 is an apocalyptic number.

It is an amenable number.

78988898356 is a deficient number, since it is larger than the sum of its proper divisors (59686147244).

78988898356 is a wasteful number, since it uses less digits than its factorization.

78988898356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63496214 (or 63496212 counting only the distinct ones).

The product of its digits is 1672151040, while the sum is 79.

The spelling of 78988898356 in words is "seventy-eight billion, nine hundred eighty-eight million, eight hundred ninety-eight thousand, three hundred fifty-six".