99910001000 has 32 divisors (see below), whose sum is σ = 233789404680. Its totient is φ = 39964000000.

The previous prime is 99910000999. The next prime is 99910001017. The reversal of 99910001000 is 10001999.

It can be written as a sum of positive squares in 4 ways, for example, as 30800952004 + 69109048996 = 175502^2 + 262886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49954001 + ... + 49956000.

Almost surely, 2^99910001000 is an apocalyptic number.

It is an amenable number.

99910001000 is an abundant number, since it is smaller than the sum of its proper divisors (133879403680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99910001000 is a wasteful number, since it uses less digits than its factorization.

99910001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99910022 (or 99910008 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 29.

Adding to 99910001000 its reverse (10001999), we get a palindrome (99920002999).

The spelling of 99910001000 in words is "ninety-nine billion, nine hundred ten million, one thousand".