12081052776 has 64 divisors (see below), whose sum is σ = 33139653120. Its totient is φ = 3647105280.

The previous prime is 12081052757. The next prime is 12081052843. The reversal of 12081052776 is 67725018021.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348760 + ... + 381831.

It is an arithmetic number, because the mean of its divisors is an integer number (517807080).

Almost surely, 2^12081052776 is an apocalyptic number.

It is an amenable number.

12081052776 is an abundant number, since it is smaller than the sum of its proper divisors (21058600344).

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

12081052776 is a wasteful number, since it uses less digits than its factorization.

12081052776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730666 (or 730662 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 12081052776 in words is "twelve billion, eighty-one million, fifty-two thousand, seven hundred seventy-six".