87205051543 has 8 divisors (see below), whose sum is σ = 88862619456. Its totient is φ = 85547935200.

The previous prime is 87205051537. The next prime is 87205051559. The reversal of 87205051543 is 34515050278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87205051543 - 2¹⁷ = 87204920471 is a prime.

It is a super-3 number, since 3×87205051543³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87205051496 and 87205051505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87205051643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290578 + ... + 508768.

It is an arithmetic number, because the mean of its divisors is an integer number (11107827432).

Almost surely, 2^87205051543 is an apocalyptic number.

87205051543 is a deficient number, since it is larger than the sum of its proper divisors (1657567913).

87205051543 is a wasteful number, since it uses less digits than its factorization.

87205051543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225785.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 87205051543 in words is "eighty-seven billion, two hundred five million, fifty-one thousand, five hundred forty-three".