10818120419 has 4 divisors (see below), whose sum is σ = 10818569520. Its totient is φ = 10817671320.

The previous prime is 10818120389. The next prime is 10818120451. The reversal of 10818120419 is 91402181801.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10818120419 is a prime.

It is a super-2 number, since 2×10818120419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10818120479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186239 + ... + 237320.

It is an arithmetic number, because the mean of its divisors is an integer number (2704642380).

Almost surely, 2^10818120419 is an apocalyptic number.

10818120419 is a deficient number, since it is larger than the sum of its proper divisors (449101).

10818120419 is an equidigital number, since it uses as much as digits as its factorization.

10818120419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449100.

The product of its (nonzero) digits is 4608, while the sum is 35.

The spelling of 10818120419 in words is "ten billion, eight hundred eighteen million, one hundred twenty thousand, four hundred nineteen".