87261224871 has 16 divisors (see below), whose sum is σ = 119523307904. Its totient is φ = 56587447584.

The previous prime is 87261224867. The next prime is 87261224879. The reversal of 87261224871 is 17842216278.

It is not a de Polignac number, because 87261224871 - 2² = 87261224867 is a prime.

It is a super-3 number, since 3×87261224871³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87261224871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87261224879) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 346140 + ... + 542526.

It is an arithmetic number, because the mean of its divisors is an integer number (7470206744).

Almost surely, 2^87261224871 is an apocalyptic number.

87261224871 is a deficient number, since it is larger than the sum of its proper divisors (32262083033).

87261224871 is a wasteful number, since it uses less digits than its factorization.

87261224871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200430.

The product of its digits is 602112, while the sum is 48.

The spelling of 87261224871 in words is "eighty-seven billion, two hundred sixty-one million, two hundred twenty-four thousand, eight hundred seventy-one".