12386830977049 has 9 divisors (see below), whose sum is σ = 13158392658397. Its totient is φ = 11658137548864.

The previous prime is 12386830977011. The next prime is 12386830977127. The reversal of 12386830977049 is 94077903868321.

The square root of 12386830977049 is 3519493.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 9552766470025 + 2834064507024 = 3090755^2 + 1683468^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12386830977049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12386830977349) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 59727867 + ... + 59934895.

Almost surely, 2^{12386830977049} is an apocalyptic number.

12386830977049 is the 3519493-rd square number.

12386830977049 is the 1759747-th centered octagonal number.

It is an amenable number.

12386830977049 is a deficient number, since it is larger than the sum of its proper divisors (771561681348).

12386830977049 is an frugal number, since it uses more digits than its factorization.

12386830977049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414092 (or 207046 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 67.

The spelling of 12386830977049 in words is "twelve trillion, three hundred eighty-six billion, eight hundred thirty million, nine hundred seventy-seven thousand, forty-nine".