12808807830 has 160 divisors (see below), whose sum is σ = 42389734464. Its totient is φ = 2702502144.

The previous prime is 12808807787. The next prime is 12808807831. The reversal of 12808807830 is 3870880821.

It is a happy number.

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 (12808807831) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13177 + ... + 160596.

Almost surely, 2^12808807830 is an apocalyptic number.

12808807830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12808807830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21194867232).

12808807830 is an abundant number, since it is smaller than the sum of its proper divisors (29580926634).

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

12808807830 is a wasteful number, since it uses less digits than its factorization.

12808807830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173812 (or 173803 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 12808807830 in words is "twelve billion, eight hundred eight million, eight hundred seven thousand, eight hundred thirty".