87958200921 has 8 divisors (see below), whose sum is σ = 117613641600. Its totient is φ = 58470780432.

The previous prime is 87958200907. The next prime is 87958200929. The reversal of 87958200921 is 12900285978.

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

It is not a de Polignac number, because 87958200921 - 2⁷ = 87958200793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87958200929) 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, 42003825 + ... + 42005918.

It is an arithmetic number, because the mean of its divisors is an integer number (14701705200).

Almost surely, 2^87958200921 is an apocalyptic number.

It is an amenable number.

87958200921 is a deficient number, since it is larger than the sum of its proper divisors (29655440679).

87958200921 is a wasteful number, since it uses less digits than its factorization.

87958200921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84010095.

The product of its (nonzero) digits is 725760, while the sum is 51.

The spelling of 87958200921 in words is "eighty-seven billion, nine hundred fifty-eight million, two hundred thousand, nine hundred twenty-one".