87870610440 has 96 divisors (see below), whose sum is σ = 287289737280. Its totient is φ = 23291834496.

The previous prime is 87870610433. The next prime is 87870610571. The reversal of 87870610440 is 4401607878.

87870610440 is a `hidden beast` number, since 87 + 8 + 70 + 61 + 0 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 670674 + ... + 790913.

It is an arithmetic number, because the mean of its divisors is an integer number (2992601430).

Almost surely, 2^87870610440 is an apocalyptic number.

It is an amenable number.

87870610440 is an abundant number, since it is smaller than the sum of its proper divisors (199419126840).

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

87870610440 is a wasteful number, since it uses less digits than its factorization.

87870610440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461771 (or 1461764 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 87870610440 in words is "eighty-seven billion, eight hundred seventy million, six hundred ten thousand, four hundred forty".