12081747174 has 16 divisors (see below), whose sum is σ = 27615422208. Its totient is φ = 3451927752.

The previous prime is 12081747157. The next prime is 12081747191. The reversal of 12081747174 is 47174718021.

It is an interprime number because it is at equal distance from previous prime (12081747157) and next prime (12081747191).

It is a super-2 number, since 2×12081747174² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 287660647 = 12081747174 / (1 + 2 + 0 + 8 + 1 + 7 + 4 + 7 + 1 + 7 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143830282 + ... + 143830365.

It is an arithmetic number, because the mean of its divisors is an integer number (1725963888).

Almost surely, 2^12081747174 is an apocalyptic number.

12081747174 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12081747174 is an abundant number, since it is smaller than the sum of its proper divisors (15533675034).

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

12081747174 is a wasteful number, since it uses less digits than its factorization.

12081747174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287660659.

The product of its (nonzero) digits is 87808, while the sum is 42.

The spelling of 12081747174 in words is "twelve billion, eighty-one million, seven hundred forty-seven thousand, one hundred seventy-four".