11755421389924 has 27 divisors (see below), whose sum is σ = 20606907040083. Its totient is φ = 5867750559672.

The previous prime is 11755421389847. The next prime is 11755421389979. The reversal of 11755421389924 is 42998312455711.

The square root of 11755421389924 is 3428618.

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

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, 5643504187 + ... + 5643506269.

Almost surely, 2^{11755421389924} is an apocalyptic number.

11755421389924 is the 3428618-th square number.

It is an amenable number.

11755421389924 is a deficient number, since it is larger than the sum of its proper divisors (8851485650159).

11755421389924 is an frugal number, since it uses more digits than its factorization.

11755421389924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816 (or 2908 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 61.

The spelling of 11755421389924 in words is "eleven trillion, seven hundred fifty-five billion, four hundred twenty-one million, three hundred eighty-nine thousand, nine hundred twenty-four".