11802623218 has 16 divisors (see below), whose sum is σ = 18747383904. Its totient is φ = 5553570880.

The previous prime is 11802623197. The next prime is 11802623237. The reversal of 11802623218 is 81232620811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523821 + ... + 545887.

It is an arithmetic number, because the mean of its divisors is an integer number (1171711494).

Almost surely, 2^11802623218 is an apocalyptic number.

11802623218 is a deficient number, since it is larger than the sum of its proper divisors (6944760686).

11802623218 is a wasteful number, since it uses less digits than its factorization.

11802623218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37817.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 11802623218 in words is "eleven billion, eight hundred two million, six hundred twenty-three thousand, two hundred eighteen".