12748181776 has 80 divisors (see below), whose sum is σ = 27487133568. Its totient is φ = 5679027200.

The previous prime is 12748181773. The next prime is 12748181827. The reversal of 12748181776 is 67718184721.

It is a super-2 number, since 2×12748181776² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12748181773) 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, 2158860 + ... + 2164756.

Almost surely, 2^12748181776 is an apocalyptic number.

12748181776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12748181776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13743566784).

12748181776 is an abundant number, since it is smaller than the sum of its proper divisors (14738951792).

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

12748181776 is a wasteful number, since it uses less digits than its factorization.

12748181776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160 (or 6154 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 52.

The spelling of 12748181776 in words is "twelve billion, seven hundred forty-eight million, one hundred eighty-one thousand, seven hundred seventy-six".