87298317504 has 168 divisors, whose sum is σ = 251655986400. Its totient is φ = 28933632000.

The previous prime is 87298317487. The next prime is 87298317511. The reversal of 87298317504 is 40571389278.

It is a happy number.

87298317504 is a `hidden beast` number, since 87 + 29 + 8 + 31 + 7 + 504 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145254804 + ... + 145255404.

It is an arithmetic number, because the mean of its divisors is an integer number (1497952300).

Almost surely, 2^87298317504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87298317504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125827993200).

87298317504 is an abundant number, since it is smaller than the sum of its proper divisors (164357668896).

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

87298317504 is a wasteful number, since it uses less digits than its factorization.

87298317504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 87298317504 in words is "eighty-seven billion, two hundred ninety-eight million, three hundred seventeen thousand, five hundred four".