99768205900 has 72 divisors (see below), whose sum is σ = 239703782976. Its totient is φ = 35737838400.

The previous prime is 99768205897. The next prime is 99768205921. The reversal of 99768205900 is 950286799.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 603154 + ... + 750553.

It is an arithmetic number, because the mean of its divisors is an integer number (3329219208).

Almost surely, 2^99768205900 is an apocalyptic number.

It is an amenable number.

99768205900 is an abundant number, since it is smaller than the sum of its proper divisors (139935577076).

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

99768205900 is a wasteful number, since it uses less digits than its factorization.

99768205900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353799 (or 1353792 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 99768205900 in words is "ninety-nine billion, seven hundred sixty-eight million, two hundred five thousand, nine hundred".