87857075878 has 16 divisors (see below), whose sum is σ = 154825057296. Its totient is φ = 36863108640.

The previous prime is 87857075863. The next prime is 87857075893.

87857075878 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (87857075863) and next prime (87857075893).

It is a congruent number.

It is an unprimeable number.

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, 153596001 + ... + 153596572.

It is an arithmetic number, because the mean of its divisors is an integer number (9676566081).

Almost surely, 2^87857075878 is an apocalyptic number.

87857075878 is a deficient number, since it is larger than the sum of its proper divisors (66967981418).

87857075878 is a wasteful number, since it uses less digits than its factorization.

87857075878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307192599.

The product of its (nonzero) digits is 245862400, while the sum is 70.

The spelling of 87857075878 in words is "eighty-seven billion, eight hundred fifty-seven million, seventy-five thousand, eight hundred seventy-eight".