87065302490 has 16 divisors (see below), whose sum is σ = 162121598280. Its totient is φ = 33625220160.

The previous prime is 87065302481. The next prime is 87065302507. The reversal of 87065302490 is 9420356078.

It can be written as a sum of positive squares in 4 ways, for example, as 50148675721 + 36916626769 = 223939^2 + 192137^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150112301 + ... + 150112880.

Almost surely, 2^87065302490 is an apocalyptic number.

87065302490 is a deficient number, since it is larger than the sum of its proper divisors (75056295790).

87065302490 is a wasteful number, since it uses less digits than its factorization.

87065302490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300225217.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 87065302490 in words is "eighty-seven billion, sixty-five million, three hundred two thousand, four hundred ninety".