11538469475452 has 24 divisors (see below), whose sum is σ = 21424740140160. Its totient is φ = 5418532131840.

The previous prime is 11538469475441. The next prime is 11538469475453. The reversal of 11538469475452 is 25457496483511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11538469475453) 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, 177089949 + ... + 177155092.

It is an arithmetic number, because the mean of its divisors is an integer number (892697505840).

Almost surely, 2^{11538469475452} is an apocalyptic number.

It is an amenable number.

11538469475452 is a deficient number, since it is larger than the sum of its proper divisors (9886270664708).

11538469475452 is a wasteful number, since it uses less digits than its factorization.

11538469475452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354245541 (or 354245539 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 64.

The spelling of 11538469475452 in words is "eleven trillion, five hundred thirty-eight billion, four hundred sixty-nine million, four hundred seventy-five thousand, four hundred fifty-two".