87918304878 has 16 divisors (see below), whose sum is σ = 195374010960. Its totient is φ = 29306101608.

The previous prime is 87918304861. The next prime is 87918304879. The reversal of 87918304878 is 87840381978.

87918304878 is a `hidden beast` number, since 8 + 79 + 1 + 83 + 0 + 487 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87918304879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814058325 + ... + 814058432.

It is an arithmetic number, because the mean of its divisors is an integer number (12210875685).

Almost surely, 2^87918304878 is an apocalyptic number.

87918304878 is an abundant number, since it is smaller than the sum of its proper divisors (107455706082).

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

87918304878 is a wasteful number, since it uses less digits than its factorization.

87918304878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628116768 (or 1628116762 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 63.

The spelling of 87918304878 in words is "eighty-seven billion, nine hundred eighteen million, three hundred four thousand, eight hundred seventy-eight".