11541216387 has 8 divisors (see below), whose sum is σ = 15617964736. Its totient is φ = 7579306152.

The previous prime is 11541216361. The next prime is 11541216419. The reversal of 11541216387 is 78361214511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11541216387 - 2²² = 11537022083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11541216187) 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, 28709293 + ... + 28709694.

It is an arithmetic number, because the mean of its divisors is an integer number (1952245592).

Almost surely, 2^11541216387 is an apocalyptic number.

11541216387 is a deficient number, since it is larger than the sum of its proper divisors (4076748349).

11541216387 is an equidigital number, since it uses as much as digits as its factorization.

11541216387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57419057.

The product of its digits is 40320, while the sum is 39.

The spelling of 11541216387 in words is "eleven billion, five hundred forty-one million, two hundred sixteen thousand, three hundred eighty-seven".