87554583921 has 8 divisors (see below), whose sum is σ = 133416508864. Its totient is φ = 50031190800.

The previous prime is 87554583911. The next prime is 87554583947. The reversal of 87554583921 is 12938545578.

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

It is not a de Polignac number, because 87554583921 - 2¹⁵ = 87554551153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87554583911) 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, 2084632930 + ... + 2084632971.

It is an arithmetic number, because the mean of its divisors is an integer number (16677063608).

Almost surely, 2^87554583921 is an apocalyptic number.

It is an amenable number.

87554583921 is a deficient number, since it is larger than the sum of its proper divisors (45861924943).

87554583921 is a wasteful number, since it uses less digits than its factorization.

87554583921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169265911.

The product of its digits is 12096000, while the sum is 57.

The spelling of 87554583921 in words is "eighty-seven billion, five hundred fifty-four million, five hundred eighty-three thousand, nine hundred twenty-one".