12081193458 has 16 divisors (see below), whose sum is σ = 24941819136. Its totient is φ = 3897159120.

The previous prime is 12081193457. The next prime is 12081193459. The reversal of 12081193458 is 85439118021.

It is an interprime number because it is at equal distance from previous prime (12081193457) and next prime (12081193459).

It is not an unprimeable number, because it can be changed into a prime (12081193457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32476141 + ... + 32476512.

It is an arithmetic number, because the mean of its divisors is an integer number (1558863696).

Almost surely, 2^12081193458 is an apocalyptic number.

12081193458 is an abundant number, since it is smaller than the sum of its proper divisors (12860625678).

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

12081193458 is a wasteful number, since it uses less digits than its factorization.

12081193458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64952689.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 12081193458 in words is "twelve billion, eighty-one million, one hundred ninety-three thousand, four hundred fifty-eight".