87537281863 has 4 divisors (see below), whose sum is σ = 89573032648. Its totient is φ = 85501531080.

The previous prime is 87537281833. The next prime is 87537281893. The reversal of 87537281863 is 36818273578.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (87537281833) and next prime (87537281893).

It is a cyclic number.

It is not a de Polignac number, because 87537281863 - 2²⁵ = 87503727431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87537281798 and 87537281807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87537281833) 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 in 3 ways as a sum of consecutive naturals, for example, 1017875328 + ... + 1017875413.

It is an arithmetic number, because the mean of its divisors is an integer number (22393258162).

Almost surely, 2^87537281863 is an apocalyptic number.

87537281863 is a deficient number, since it is larger than the sum of its proper divisors (2035750785).

87537281863 is a wasteful number, since it uses less digits than its factorization.

87537281863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035750784.

The product of its digits is 13547520, while the sum is 58.

The spelling of 87537281863 in words is "eighty-seven billion, five hundred thirty-seven million, two hundred eighty-one thousand, eight hundred sixty-three".