87854008779 has 8 divisors (see below), whose sum is σ = 130154087120. Its totient is φ = 58569339168.

The previous prime is 87854008757. The next prime is 87854008789. The reversal of 87854008779 is 97780045878.

87854008779 is a `hidden beast` number, since 8 + 7 + 8 + 540 + 0 + 87 + 7 + 9 = 666.

It is not a de Polignac number, because 87854008779 - 2⁵ = 87854008747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87854008709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1626926062 + ... + 1626926115.

It is an arithmetic number, because the mean of its divisors is an integer number (16269260890).

Almost surely, 2^87854008779 is an apocalyptic number.

87854008779 is a deficient number, since it is larger than the sum of its proper divisors (42300078341).

87854008779 is a wasteful number, since it uses less digits than its factorization.

87854008779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253852186 (or 3253852180 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 63.

The spelling of 87854008779 in words is "eighty-seven billion, eight hundred fifty-four million, eight thousand, seven hundred seventy-nine".