12114773172 has 72 divisors (see below), whose sum is σ = 32722489800. Its totient is φ = 3765823488.

The previous prime is 12114773131. The next prime is 12114773191. The reversal of 12114773172 is 27137741121.

12114773172 is a `hidden beast` number, since 1 + 2 + 11 + 477 + 3 + 172 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4815804816 + 7298968356 = 69396^2 + 85434^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24097 + ... + 157512.

It is an arithmetic number, because the mean of its divisors is an integer number (454479025).

Almost surely, 2^12114773172 is an apocalyptic number.

12114773172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12114773172 is an abundant number, since it is smaller than the sum of its proper divisors (20607716628).

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

12114773172 is a wasteful number, since it uses less digits than its factorization.

12114773172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181745 (or 181740 counting only the distinct ones).

The product of its digits is 16464, while the sum is 36.

The spelling of 12114773172 in words is "twelve billion, one hundred fourteen million, seven hundred seventy-three thousand, one hundred seventy-two".