11315645473 has 16 divisors (see below), whose sum is σ = 12651408000. Its totient is φ = 10031299200.

The previous prime is 11315645443. The next prime is 11315645489. The reversal of 11315645473 is 37454651311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11315645473 - 2⁹ = 11315644961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11315645413) 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, 1235236 + ... + 1244362.

It is an arithmetic number, because the mean of its divisors is an integer number (790713000).

Almost surely, 2^11315645473 is an apocalyptic number.

It is an amenable number.

11315645473 is a deficient number, since it is larger than the sum of its proper divisors (1335762527).

11315645473 is a wasteful number, since it uses less digits than its factorization.

11315645473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11928.

The product of its digits is 151200, while the sum is 40.

The spelling of 11315645473 in words is "eleven billion, three hundred fifteen million, six hundred forty-five thousand, four hundred seventy-three".