12770197830 has 64 divisors (see below), whose sum is σ = 36673398720. Its totient is φ = 3143432448.

The previous prime is 12770197823. The next prime is 12770197831. The reversal of 12770197830 is 3879107721.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770197831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1815607 + ... + 1822626.

It is an arithmetic number, because the mean of its divisors is an integer number (573021855).

Almost surely, 2^12770197830 is an apocalyptic number.

12770197830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12770197830 is an abundant number, since it is smaller than the sum of its proper divisors (23903200890).

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

12770197830 is a wasteful number, since it uses less digits than its factorization.

12770197830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638262 (or 3638256 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The spelling of 12770197830 in words is "twelve billion, seven hundred seventy million, one hundred ninety-seven thousand, eight hundred thirty".