87205051492 has 24 divisors (see below), whose sum is σ = 165182254776. Its totient is φ = 40044173568.

The previous prime is 87205051481. The next prime is 87205051501. The reversal of 87205051492 is 29415050278.

It can be written as a sum of positive squares in 4 ways, for example, as 12738282496 + 74466768996 = 112864^2 + 272886^2 .

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 7 ways as a sum of consecutive naturals, for example, 4246153 + ... + 4266640.

It is an arithmetic number, because the mean of its divisors is an integer number (6882593949).

Almost surely, 2^87205051492 is an apocalyptic number.

It is an amenable number.

87205051492 is a deficient number, since it is larger than the sum of its proper divisors (77977203284).

87205051492 is a wasteful number, since it uses less digits than its factorization.

87205051492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513007 (or 8513005 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 87205051492 in words is "eighty-seven billion, two hundred five million, fifty-one thousand, four hundred ninety-two".