8161528880878 has 8 divisors (see below), whose sum is σ = 12242330861040. Its totient is φ = 4080751927200.

The previous prime is 8161528880849. The next prime is 8161528880881. The reversal of 8161528880878 is 8780888251618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8161528880878² (a number of 27 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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5418898 + ... + 6759253.

It is an arithmetic number, because the mean of its divisors is an integer number (1530291357630).

Almost surely, 2^{8161528880878} is an apocalyptic number.

8161528880878 is a deficient number, since it is larger than the sum of its proper divisors (4080801980162).

8161528880878 is a wasteful number, since it uses less digits than its factorization.

8161528880878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12513242.

The product of its (nonzero) digits is 110100480, while the sum is 70.

The spelling of 8161528880878 in words is "eight trillion, one hundred sixty-one billion, five hundred twenty-eight million, eight hundred eighty thousand, eight hundred seventy-eight".