87853608493 has 4 divisors (see below), whose sum is σ = 100404124000. Its totient is φ = 75303092988.

The previous prime is 87853608481. The next prime is 87853608529. The reversal of 87853608493 is 39480635878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87853608493 - 2¹³ = 87853600301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87853608443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6275257743 + ... + 6275257756.

It is an arithmetic number, because the mean of its divisors is an integer number (25101031000).

Almost surely, 2^87853608493 is an apocalyptic number.

It is an amenable number.

87853608493 is a deficient number, since it is larger than the sum of its proper divisors (12550515507).

87853608493 is a wasteful number, since it uses less digits than its factorization.

87853608493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12550515506.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 87853608493 in words is "eighty-seven billion, eight hundred fifty-three million, six hundred eight thousand, four hundred ninety-three".