12812502740 has 96 divisors (see below), whose sum is σ = 28678358016. Its totient is φ = 4800337920.

The previous prime is 12812502721. The next prime is 12812502743. The reversal of 12812502740 is 4720521821.

It is a junction number, because it is equal to n+sod(n) for n = 12812502697 and 12812502706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12812502743) 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, 3010454 + ... + 3014706.

It is an arithmetic number, because the mean of its divisors is an integer number (298732896).

Almost surely, 2^12812502740 is an apocalyptic number.

12812502740 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 12812502740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14339179008).

12812502740 is an abundant number, since it is smaller than the sum of its proper divisors (15865855276).

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

12812502740 is a wasteful number, since it uses less digits than its factorization.

12812502740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449 (or 4447 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 12812502740 in words is "twelve billion, eight hundred twelve million, five hundred two thousand, seven hundred forty".