11505238714450 has 48 divisors (see below), whose sum is σ = 23048448554880. Its totient is φ = 4247614336320.

The previous prime is 11505238714423. The next prime is 11505238714481. The reversal of 11505238714450 is 5441783250511.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11505238714450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4871961 + ... + 6837139.

It is an arithmetic number, because the mean of its divisors is an integer number (480176011560).

Almost surely, 2^{11505238714450} is an apocalyptic number.

11505238714450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11505238714450 is an abundant number, since it is smaller than the sum of its proper divisors (11543209840430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11505238714450 is a wasteful number, since it uses less digits than its factorization.

11505238714450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974211 (or 1974206 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 46.

The spelling of 11505238714450 in words is "eleven trillion, five hundred five billion, two hundred thirty-eight million, seven hundred fourteen thousand, four hundred fifty".