12776006920 has 64 divisors (see below), whose sum is σ = 29437182720. Its totient is φ = 4987713024.

The previous prime is 12776006891. The next prime is 12776006921. The reversal of 12776006920 is 2960067721.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (12776006921) 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, 3426097 + ... + 3429823.

It is an arithmetic number, because the mean of its divisors is an integer number (459955980).

Almost surely, 2^12776006920 is an apocalyptic number.

12776006920 is a gapful number since it is divisible by the number (10) 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 12776006920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14718591360).

12776006920 is an abundant number, since it is smaller than the sum of its proper divisors (16661175800).

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

12776006920 is a wasteful number, since it uses less digits than its factorization.

12776006920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774 (or 5770 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 12776006920 in words is "twelve billion, seven hundred seventy-six million, six thousand, nine hundred twenty".