11817258765376 has 63 divisors (see below), whose sum is σ = 23560793109333. Its totient is φ = 5880812129280.

The previous prime is 11817258765353. The next prime is 11817258765383. The reversal of 11817258765376 is 67356785271811.

The square root of 11817258765376 is 3437624.

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

It can be written as a sum of positive squares in only one way, i.e., 8887410342976 + 2929848422400 = 2981176^2 + 1711680^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6627738181 + ... + 6627739963.

Almost surely, 2^{11817258765376} is an apocalyptic number.

11817258765376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11817258765376 is the 3437624-th square number.

It is an amenable number.

11817258765376 is a deficient number, since it is larger than the sum of its proper divisors (11743534343957).

11817258765376 is an frugal number, since it uses more digits than its factorization.

11817258765376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060 (or 2026 counting only the distinct ones).

The product of its digits is 118540800, while the sum is 67.

The spelling of 11817258765376 in words is "eleven trillion, eight hundred seventeen billion, two hundred fifty-eight million, seven hundred sixty-five thousand, three hundred seventy-six".