11974928751361 has 9 divisors (see below), whose sum is σ = 12026073284481. Its totient is φ = 11924000852484.

The previous prime is 11974928751349. The next prime is 11974928751413. The reversal of 11974928751361 is 16315782947911.

The square root of 11974928751361 is 3460481.

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

It is not a de Polignac number, because 11974928751361 - 2¹⁷ = 11974928620289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11974928751293 and 11974928751302.

It is not an unprimeable number, because it can be changed into a prime (11974908751361) 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, 827047720 + ... + 827062198.

Almost surely, 2^{11974928751361} is an apocalyptic number.

11974928751361 is the 3460481-st square number.

11974928751361 is the 1730241-st centered octagonal number.

It is an amenable number.

11974928751361 is a deficient number, since it is larger than the sum of its proper divisors (51144533120).

11974928751361 is an frugal number, since it uses more digits than its factorization.

11974928751361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29436 (or 14718 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 64.

Multiplying 11974928751361 by its sum of digits (64), we get a square (766395440087104 = 27683848²).

The spelling of 11974928751361 in words is "eleven trillion, nine hundred seventy-four billion, nine hundred twenty-eight million, seven hundred fifty-one thousand, three hundred sixty-one".