12015098538 has 8 divisors (see below), whose sum is σ = 24030197088. Its totient is φ = 4005032844.

The previous prime is 12015098507. The next prime is 12015098573. The reversal of 12015098538 is 83589051021.

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

12015098538 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12015098538.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001258206 + ... + 1001258217.

It is an arithmetic number, because the mean of its divisors is an integer number (3003774636).

Almost surely, 2^12015098538 is an apocalyptic number.

12015098538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12015098538 is a wasteful number, since it uses less digits than its factorization.

12015098538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002516428.

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 12015098538 in words is "twelve billion, fifteen million, ninety-eight thousand, five hundred thirty-eight".