78541677188556 has 96 divisors (see below), whose sum is σ = 189794833240320. Its totient is φ = 25262335343616.

The previous prime is 78541677188539. The next prime is 78541677188573. The reversal of 78541677188556 is 65588177614587.

It is an interprime number because it is at equal distance from previous prime (78541677188539) and next prime (78541677188573).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1216668376 + ... + 1216732928.

It is an arithmetic number, because the mean of its divisors is an integer number (1977029512920).

Almost surely, 2^{78541677188556} is an apocalyptic number.

It is an amenable number.

78541677188556 is an abundant number, since it is smaller than the sum of its proper divisors (111253156051764).

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

78541677188556 is a wasteful number, since it uses less digits than its factorization.

78541677188556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93095 (or 93093 counting only the distinct ones).

The product of its digits is 3161088000, while the sum is 78.

The spelling of 78541677188556 in words is "seventy-eight trillion, five hundred forty-one billion, six hundred seventy-seven million, one hundred eighty-eight thousand, five hundred fifty-six".