87488392820 has 24 divisors (see below), whose sum is σ = 189652259328. Its totient is φ = 33866474400.

The previous prime is 87488392801. The next prime is 87488392877. The reversal of 87488392820 is 2829388478.

It is a self number, because there is not a number n which added to its sum of digits gives 87488392820.

It is a congruent number.

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, 70554536 + ... + 70555775.

It is an arithmetic number, because the mean of its divisors is an integer number (7902177472).

Almost surely, 2^87488392820 is an apocalyptic number.

It is an amenable number.

87488392820 is an abundant number, since it is smaller than the sum of its proper divisors (102163866508).

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

87488392820 is a wasteful number, since it uses less digits than its factorization.

87488392820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141110351 (or 141110349 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 59.

The spelling of 87488392820 in words is "eighty-seven billion, four hundred eighty-eight million, three hundred ninety-two thousand, eight hundred twenty".