11372820859 has 4 divisors (see below), whose sum is σ = 11739686080. Its totient is φ = 11005955640.

The previous prime is 11372820857. The next prime is 11372820881. The reversal of 11372820859 is 95802827311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11372820859 - 2¹ = 11372820857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11372820853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183432564 + ... + 183432625.

It is an arithmetic number, because the mean of its divisors is an integer number (2934921520).

Almost surely, 2^11372820859 is an apocalyptic number.

11372820859 is a deficient number, since it is larger than the sum of its proper divisors (366865221).

11372820859 is an equidigital number, since it uses as much as digits as its factorization.

11372820859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366865220.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 11372820859 in words is "eleven billion, three hundred seventy-two million, eight hundred twenty thousand, eight hundred fifty-nine".