87285904471 has 2 divisors, whose sum is σ = 87285904472. Its totient is φ = 87285904470.

The previous prime is 87285904469. The next prime is 87285904483. The reversal of 87285904471 is 17440958278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87285904471 - 2¹ = 87285904469 is a prime.

It is a super-3 number, since 3×87285904471³ (a number of 34 digits) contains 333 as substring.

Together with 87285904469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87285904451) 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 as a sum of consecutive naturals, namely, 43642952235 + 43642952236.

It is an arithmetic number, because the mean of its divisors is an integer number (43642952236).

Almost surely, 2^87285904471 is an apocalyptic number.

87285904471 is a deficient number, since it is larger than the sum of its proper divisors (1).

87285904471 is an equidigital number, since it uses as much as digits as its factorization.

87285904471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 87285904471 in words is "eighty-seven billion, two hundred eighty-five million, nine hundred four thousand, four hundred seventy-one".