87704491240 has 64 divisors (see below), whose sum is σ = 210860139600. Its totient is φ = 32715214848.

The previous prime is 87704491201. The next prime is 87704491241. The reversal of 87704491240 is 4219440778.

It can be written as a sum of positive squares in 8 ways, for example, as 70098916644 + 17605574596 = 264762^2 + 132686^2 .

It is not an unprimeable number, because it can be changed into a prime (87704491241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517519 + ... + 665758.

Almost surely, 2^87704491240 is an apocalyptic number.

It is an amenable number.

87704491240 is an abundant number, since it is smaller than the sum of its proper divisors (123155648360).

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

87704491240 is a wasteful number, since it uses less digits than its factorization.

87704491240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183414 (or 1183410 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 87704491240 in words is "eighty-seven billion, seven hundred four million, four hundred ninety-one thousand, two hundred forty".