11939714361 has 81 divisors (see below), whose sum is σ = 19170789573. Its totient is φ = 7434662760.

The previous prime is 11939714327. The next prime is 11939714377. The reversal of 11939714361 is 16341793911.

The square root of 11939714361 is 109269.

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

11939714361 is a `hidden beast` number, since 1 + 193 + 97 + 14 + 361 = 666.

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 11939714361 - 2⁷ = 11939714233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11939714321) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 168164956 + ... + 168165026.

Almost surely, 2^11939714361 is an apocalyptic number.

11939714361 is the 109269-th square number.

11939714361 is the 54635-th centered octagonal number.

It is an amenable number.

11939714361 is a deficient number, since it is larger than the sum of its proper divisors (7231075212).

11939714361 is an frugal number, since it uses more digits than its factorization.

11939714361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 93 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The spelling of 11939714361 in words is "eleven billion, nine hundred thirty-nine million, seven hundred fourteen thousand, three hundred sixty-one".