87585687240 has 64 divisors (see below), whose sum is σ = 262788926400. Its totient is φ = 23353350912.

The previous prime is 87585687239. The next prime is 87585687271. The reversal of 87585687240 is 4278658578.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064706 + ... + 1144014.

It is an arithmetic number, because the mean of its divisors is an integer number (4106076975).

Almost surely, 2^87585687240 is an apocalyptic number.

It is an amenable number.

87585687240 is an abundant number, since it is smaller than the sum of its proper divisors (175203239160).

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

87585687240 is a wasteful number, since it uses less digits than its factorization.

87585687240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88526 (or 88522 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 60.

The spelling of 87585687240 in words is "eighty-seven billion, five hundred eighty-five million, six hundred eighty-seven thousand, two hundred forty".