11728470215458 has 48 divisors (see below), whose sum is σ = 18728455521384. Its totient is φ = 5507476367360.

The previous prime is 11728470215453. The next prime is 11728470215477. The reversal of 11728470215458 is 85451207482711.

It is a happy number.

11728470215458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 8782966450449 + 2945503765009 = 2963607^2 + 1716247^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11728470215399 and 11728470215408.

It is not an unprimeable number, because it can be changed into a prime (11728470215453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549563868 + ... + 549585208.

Almost surely, 2^{11728470215458} is an apocalyptic number.

11728470215458 is a deficient number, since it is larger than the sum of its proper divisors (6999985305926).

11728470215458 is a wasteful number, since it uses less digits than its factorization.

11728470215458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23367 (or 23350 counting only the distinct ones).

The product of its (nonzero) digits is 5017600, while the sum is 55.

The spelling of 11728470215458 in words is "eleven trillion, seven hundred twenty-eight billion, four hundred seventy million, two hundred fifteen thousand, four hundred fifty-eight".