92878808881 has 4 divisors (see below), whose sum is σ = 92941019892. Its totient is φ = 92816597872.

The previous prime is 92878808873. The next prime is 92878808903. The reversal of 92878808881 is 18880887829.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67337655025 + 25541153856 = 259495^2 + 159816^2 .

It is a cyclic number.

It is not a de Polignac number, because 92878808881 - 2³ = 92878808873 is a prime.

It is a super-2 number, since 2×92878808881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (92878808851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31103266 + ... + 31106251.

It is an arithmetic number, because the mean of its divisors is an integer number (23235254973).

Almost surely, 2^92878808881 is an apocalyptic number.

It is an amenable number.

92878808881 is a deficient number, since it is larger than the sum of its proper divisors (62211011).

92878808881 is a wasteful number, since it uses less digits than its factorization.

92878808881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62211010.

The product of its (nonzero) digits is 33030144, while the sum is 67.

The spelling of 92878808881 in words is "ninety-two billion, eight hundred seventy-eight million, eight hundred eight thousand, eight hundred eighty-one".