12017947458 has 32 divisors (see below), whose sum is σ = 26224948800. Its totient is φ = 3641250560.

The previous prime is 12017947453. The next prime is 12017947463. The reversal of 12017947458 is 85474971021.

It is an interprime number because it is at equal distance from previous prime (12017947453) and next prime (12017947463).

It is a super-2 number, since 2×12017947458² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12017947453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 713518 + ... + 730166.

It is an arithmetic number, because the mean of its divisors is an integer number (819529650).

Almost surely, 2^12017947458 is an apocalyptic number.

12017947458 is an abundant number, since it is smaller than the sum of its proper divisors (14207001342).

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

12017947458 is a wasteful number, since it uses less digits than its factorization.

12017947458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27602.

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 12017947458 in words is "twelve billion, seventeen million, nine hundred forty-seven thousand, four hundred fifty-eight".