11539527472144 has 45 divisors (see below), whose sum is σ = 26008307543421. Its totient is φ = 4945471009920.

The previous prime is 11539527472139. The next prime is 11539527472177. The reversal of 11539527472144 is 44127472593511.

The square root of 11539527472144 is 3396988.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9233017033744 + 2306510438400 = 3038588^2 + 1518720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 95055004 + ... + 95176324.

Almost surely, 2^{11539527472144} is an apocalyptic number.

11539527472144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11539527472144 is the 3396988-th square number.

It is an amenable number.

11539527472144 is an abundant number, since it is smaller than the sum of its proper divisors (14468780071277).

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

11539527472144 is an frugal number, since it uses more digits than its factorization.

11539527472144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242664 (or 121330 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The spelling of 11539527472144 in words is "eleven trillion, five hundred thirty-nine billion, five hundred twenty-seven million, four hundred seventy-two thousand, one hundred forty-four".