99454846521 has 8 divisors (see below), whose sum is σ = 132637732000. Its totient is φ = 66287596032.

The previous prime is 99454846493. The next prime is 99454846523. The reversal of 99454846521 is 12564845499.

It is a happy number.

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

It is not a de Polignac number, because 99454846521 - 2⁵ = 99454846489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99454846523) 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, 3893896 + ... + 3919353.

It is an arithmetic number, because the mean of its divisors is an integer number (16579716500).

Almost surely, 2^99454846521 is an apocalyptic number.

It is an amenable number.

99454846521 is a deficient number, since it is larger than the sum of its proper divisors (33182885479).

99454846521 is a wasteful number, since it uses less digits than its factorization.

99454846521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817495.

The product of its digits is 12441600, while the sum is 57.

The spelling of 99454846521 in words is "ninety-nine billion, four hundred fifty-four million, eight hundred forty-six thousand, five hundred twenty-one".