87878652388 has 12 divisors (see below), whose sum is σ = 155894322220. Its totient is φ = 43337417472.

The previous prime is 87878652373. The next prime is 87878652439. The reversal of 87878652388 is 88325687878.

It can be written as a sum of positive squares in 2 ways, for example, as 44332144704 + 43546507684 = 210552^2 + 208678^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150476853 + ... + 150477436.

Almost surely, 2^87878652388 is an apocalyptic number.

It is an amenable number.

87878652388 is a deficient number, since it is larger than the sum of its proper divisors (68015669832).

87878652388 is a wasteful number, since it uses less digits than its factorization.

87878652388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300954366 (or 300954364 counting only the distinct ones).

The product of its digits is 289013760, while the sum is 70.

The spelling of 87878652388 in words is "eighty-seven billion, eight hundred seventy-eight million, six hundred fifty-two thousand, three hundred eighty-eight".