87816872242 has 16 divisors (see below), whose sum is σ = 144296612064. Its totient is φ = 39751128000.

The previous prime is 87816872219. The next prime is 87816872251. The reversal of 87816872242 is 24227861878.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8276184 + ... + 8286787.

It is an arithmetic number, because the mean of its divisors is an integer number (9018538254).

Almost surely, 2^87816872242 is an apocalyptic number.

87816872242 is a deficient number, since it is larger than the sum of its proper divisors (56479739822).

87816872242 is a wasteful number, since it uses less digits than its factorization.

87816872242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16563225.

The product of its digits is 4816896, while the sum is 55.

The spelling of 87816872242 in words is "eighty-seven billion, eight hundred sixteen million, eight hundred seventy-two thousand, two hundred forty-two".