109494869819 has 4 divisors (see below), whose sum is σ = 109499232696. Its totient is φ = 109490506944.

The previous prime is 109494869749. The next prime is 109494869851. The reversal of 109494869819 is 918968494901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 918968494901 = 163 ⋅5637843527.

It is a cyclic number.

It is not a de Polignac number, because 109494869819 - 2¹² = 109494865723 is a prime.

It is a super-2 number, since 2×109494869819² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109494569819) 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, 2143574 + ... + 2194059.

It is an arithmetic number, because the mean of its divisors is an integer number (27374808174).

Almost surely, 2^109494869819 is an apocalyptic number.

109494869819 is a deficient number, since it is larger than the sum of its proper divisors (4362877).

109494869819 is an equidigital number, since it uses as much as digits as its factorization.

109494869819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362876.

The product of its (nonzero) digits is 40310784, while the sum is 68.

The spelling of 109494869819 in words is "one hundred nine billion, four hundred ninety-four million, eight hundred sixty-nine thousand, eight hundred nineteen".