12762147840 has 176 divisors, whose sum is σ = 43959537888. Its totient is φ = 3141402624.

The previous prime is 12762147821. The next prime is 12762147841. The reversal of 12762147840 is 4874126721.

It is a junction number, because it is equal to n+sod(n) for n = 12762147792 and 12762147801.

It is not an unprimeable number, because it can be changed into a prime (12762147841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167724 + ... + 231636.

Almost surely, 2^12762147840 is an apocalyptic number.

12762147840 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 12762147840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21979768944).

12762147840 is an abundant number, since it is smaller than the sum of its proper divisors (31197390048).

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

12762147840 is a wasteful number, since it uses less digits than its factorization.

12762147840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63954 (or 63936 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 12762147840 in words is "twelve billion, seven hundred sixty-two million, one hundred forty-seven thousand, eight hundred forty".