12770345648 has 10 divisors (see below), whose sum is σ = 24742544724. Its totient is φ = 6385172816.

The previous prime is 12770345647. The next prime is 12770345659. The reversal of 12770345648 is 84654307721.

It is not an unprimeable number, because it can be changed into a prime (12770345647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399073286 + ... + 399073317.

Almost surely, 2^12770345648 is an apocalyptic number.

It is an amenable number.

12770345648 is a deficient number, since it is larger than the sum of its proper divisors (11972199076).

12770345648 is an equidigital number, since it uses as much as digits as its factorization.

12770345648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798146611 (or 798146605 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 12770345648 in words is "twelve billion, seven hundred seventy million, three hundred forty-five thousand, six hundred forty-eight".