12766764243620 has 48 divisors (see below), whose sum is σ = 28484281128240. Its totient is φ = 4797352594944.

The previous prime is 12766764243619. The next prime is 12766764243637. The reversal of 12766764243620 is 2634246766721.

It can be written as a sum of positive squares in 8 ways, for example, as 1613448686656 + 11153315556964 = 1270216^2 + 3339658^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297433439 + ... + 297476358.

It is an arithmetic number, because the mean of its divisors is an integer number (593422523505).

Almost surely, 2^{12766764243620} is an apocalyptic number.

12766764243620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12766764243620 is an abundant number, since it is smaller than the sum of its proper divisors (15717516884620).

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

12766764243620 is a wasteful number, since it uses less digits than its factorization.

12766764243620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594909872 (or 594909870 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 56.

The spelling of 12766764243620 in words is "twelve trillion, seven hundred sixty-six billion, seven hundred sixty-four million, two hundred forty-three thousand, six hundred twenty".