87400530870 has 64 divisors (see below), whose sum is σ = 219082026240. Its totient is φ = 22292523648.

The previous prime is 87400530869. The next prime is 87400530901. The reversal of 87400530870 is 7803500478.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 601792 + ... + 732771.

It is an arithmetic number, because the mean of its divisors is an integer number (3423156660).

Almost surely, 2^87400530870 is an apocalyptic number.

87400530870 is an abundant number, since it is smaller than the sum of its proper divisors (131681495370).

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

87400530870 is a wasteful number, since it uses less digits than its factorization.

87400530870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334669.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 87400530870 in words is "eighty-seven billion, four hundred million, five hundred thirty thousand, eight hundred seventy".