11475671440 has 40 divisors (see below), whose sum is σ = 27301431168. Its totient is φ = 4483516800.

The previous prime is 11475671413. The next prime is 11475671443. The reversal of 11475671440 is 4417657411.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 11475671393 and 11475671402.

It is not an unprimeable number, because it can be changed into a prime (11475671443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1664536 + ... + 1671415.

Almost surely, 2^11475671440 is an apocalyptic number.

11475671440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11475671440 is an abundant number, since it is smaller than the sum of its proper divisors (15825759728).

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

11475671440 is a wasteful number, since it uses less digits than its factorization.

11475671440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336007 (or 3336001 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 11475671440 in words is "eleven billion, four hundred seventy-five million, six hundred seventy-one thousand, four hundred forty".