11403356478 has 16 divisors (see below), whose sum is σ = 22871325456. Its totient is φ = 3790350080.

The previous prime is 11403356453. The next prime is 11403356581. The reversal of 11403356478 is 87465330411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2689893 + ... + 2694128.

It is an arithmetic number, because the mean of its divisors is an integer number (1429457841).

Almost surely, 2^11403356478 is an apocalyptic number.

11403356478 is an abundant number, since it is smaller than the sum of its proper divisors (11467968978).

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

11403356478 is a wasteful number, since it uses less digits than its factorization.

11403356478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5384379.

The product of its (nonzero) digits is 241920, while the sum is 42.

Adding to 11403356478 its reverse (87465330411), we get a palindrome (98868686889).

The spelling of 11403356478 in words is "eleven billion, four hundred three million, three hundred fifty-six thousand, four hundred seventy-eight".