11400473529 has 9 divisors (see below), whose sum is σ = 16467813349. Its totient is φ = 7600102140.

The previous prime is 11400473519. The next prime is 11400473573. The reversal of 11400473529 is 92537400411.

The square root of 11400473529 is 106773.

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

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 11400473529 - 2⁹ = 11400473017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11400473493 and 11400473502.

It is not an unprimeable number, because it can be changed into a prime (11400473519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 302524 + ... + 338114.

Almost surely, 2^11400473529 is an apocalyptic number.

11400473529 is the 106773-rd square number.

11400473529 is the 53387-th centered octagonal number.

It is an amenable number.

11400473529 is a deficient number, since it is larger than the sum of its proper divisors (5067339820).

11400473529 is an frugal number, since it uses more digits than its factorization.

11400473529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71188 (or 35594 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Multiplying 11400473529 by its sum of digits (36), we get a square (410417047044 = 640638²).

The spelling of 11400473529 in words is "eleven billion, four hundred million, four hundred seventy-three thousand, five hundred twenty-nine".