12099867238 has 32 divisors (see below), whose sum is σ = 19072449792. Its totient is φ = 5750092800.

The previous prime is 12099867179. The next prime is 12099867257. The reversal of 12099867238 is 83276899021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1085220 + ... + 1096312.

It is an arithmetic number, because the mean of its divisors is an integer number (596014056).

Almost surely, 2^12099867238 is an apocalyptic number.

12099867238 is a deficient number, since it is larger than the sum of its proper divisors (6972582554).

12099867238 is a wasteful number, since it uses less digits than its factorization.

12099867238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11440.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 12099867238 in words is "twelve billion, ninety-nine million, eight hundred sixty-seven thousand, two hundred thirty-eight".