11505238714451 has 8 divisors (see below), whose sum is σ = 11688034488000. Its totient is φ = 11323123745472.

The previous prime is 11505238714423. The next prime is 11505238714481. The reversal of 11505238714451 is 15441783250511.

11505238714451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11505238714451 - 2²² = 11505234520147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11505238714396 and 11505238714405.

It is not an unprimeable number, because it can be changed into a prime (11505238714421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170167076 + ... + 170234673.

It is an arithmetic number, because the mean of its divisors is an integer number (1461004311000).

Almost surely, 2^{11505238714451} is an apocalyptic number.

11505238714451 is a deficient number, since it is larger than the sum of its proper divisors (182795773549).

11505238714451 is an equidigital number, since it uses as much as digits as its factorization.

11505238714451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340402285.

The product of its (nonzero) digits is 672000, while the sum is 47.

The spelling of 11505238714451 in words is "eleven trillion, five hundred five billion, two hundred thirty-eight million, seven hundred fourteen thousand, four hundred fifty-one".