11447436140 has 48 divisors (see below), whose sum is σ = 27499487232. Its totient is φ = 3921172416.

The previous prime is 11447436131. The next prime is 11447436163. The reversal of 11447436140 is 4163474411.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 11447436140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114569 + ... + 189791.

It is an arithmetic number, because the mean of its divisors is an integer number (572905984).

Almost surely, 2^11447436140 is an apocalyptic number.

11447436140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11447436140 is an abundant number, since it is smaller than the sum of its proper divisors (16052051092).

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

11447436140 is a wasteful number, since it uses less digits than its factorization.

11447436140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76326 (or 76324 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 11447436140 in words is "eleven billion, four hundred forty-seven million, four hundred thirty-six thousand, one hundred forty".