99219643400 has 48 divisors (see below), whose sum is σ = 234128772240. Its totient is φ = 39095496000.

The previous prime is 99219643399. The next prime is 99219643441. The reversal of 99219643400 is 434691299.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3688826 + ... + 3715625.

It is an arithmetic number, because the mean of its divisors is an integer number (4877682755).

Almost surely, 2^99219643400 is an apocalyptic number.

It is an amenable number.

99219643400 is an abundant number, since it is smaller than the sum of its proper divisors (134909128840).

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

99219643400 is a wasteful number, since it uses less digits than its factorization.

99219643400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7404534 (or 7404525 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 99219643400 in words is "ninety-nine billion, two hundred nineteen million, six hundred forty-three thousand, four hundred".