11538453534380 has 48 divisors (see below), whose sum is σ = 24918665052960. Its totient is φ = 4485978152448.

The previous prime is 11538453534341. The next prime is 11538453534389. The reversal of 11538453534380 is 8343535483511.

11538453534380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (11538453534389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50752625 + ... + 50979464.

It is an arithmetic number, because the mean of its divisors is an integer number (519138855270).

Almost surely, 2^{11538453534380} is an apocalyptic number.

11538453534380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11538453534380 is an abundant number, since it is smaller than the sum of its proper divisors (13380211518580).

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

11538453534380 is a wasteful number, since it uses less digits than its factorization.

11538453534380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101732258 (or 101732256 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 53.

The spelling of 11538453534380 in words is "eleven trillion, five hundred thirty-eight billion, four hundred fifty-three million, five hundred thirty-four thousand, three hundred eighty".