87011873845 has 8 divisors (see below), whose sum is σ = 112446113976. Its totient is φ = 64254922176.

The previous prime is 87011873783. The next prime is 87011873867. The reversal of 87011873845 is 54837811078.

It can be written as a sum of positive squares in 4 ways, for example, as 12324996324 + 74686877521 = 111018^2 + 273289^2 .

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 87011873845 - 2²⁵ = 86978319413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87011873792 and 87011873801.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 669322042 + ... + 669322171.

It is an arithmetic number, because the mean of its divisors is an integer number (14055764247).

Almost surely, 2^87011873845 is an apocalyptic number.

It is an amenable number.

87011873845 is a deficient number, since it is larger than the sum of its proper divisors (25434240131).

87011873845 is a wasteful number, since it uses less digits than its factorization.

87011873845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338644231.

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 87011873845 in words is "eighty-seven billion, eleven million, eight hundred seventy-three thousand, eight hundred forty-five".