11478401028 has 48 divisors (see below), whose sum is σ = 30784992000. Its totient is φ = 3694197024.

The previous prime is 11478401027. The next prime is 11478401029. The reversal of 11478401028 is 82010487411.

It is an interprime number because it is at equal distance from previous prime (11478401027) and next prime (11478401029).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11478400983 and 11478401001.

It is not an unprimeable number, because it can be changed into a prime (11478401021) 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, 1829308 + ... + 1835571.

It is an arithmetic number, because the mean of its divisors is an integer number (641354000).

Almost surely, 2^11478401028 is an apocalyptic number.

11478401028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11478401028 is an abundant number, since it is smaller than the sum of its proper divisors (19306590972).

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

11478401028 is a wasteful number, since it uses less digits than its factorization.

11478401028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664921 (or 3664913 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

Adding to 11478401028 its reverse (82010487411), we get a palindrome (93488888439).

The spelling of 11478401028 in words is "eleven billion, four hundred seventy-eight million, four hundred one thousand, twenty-eight".