12770211720 has 64 divisors (see below), whose sum is σ = 43783585920. Its totient is φ = 2918905344.

The previous prime is 12770211697. The next prime is 12770211721. The reversal of 12770211720 is 2711207721.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12770211721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7600477 + ... + 7602156.

It is an arithmetic number, because the mean of its divisors is an integer number (684118530).

Almost surely, 2^12770211720 is an apocalyptic number.

12770211720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12770211720 is an abundant number, since it is smaller than the sum of its proper divisors (31013374200).

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

12770211720 is a wasteful number, since it uses less digits than its factorization.

12770211720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15202654 (or 15202650 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 30.

The spelling of 12770211720 in words is "twelve billion, seven hundred seventy million, two hundred eleven thousand, seven hundred twenty".