4909718891919 has 16 divisors (see below), whose sum is σ = 6723814255200. Its totient is φ = 3184400401920.

The previous prime is 4909718891849. The next prime is 4909718891927. The reversal of 4909718891919 is 9191988179094.

It is not a de Polignac number, because 4909718891919 - 2³⁶ = 4840999415183 is a prime.

It is a super-2 number, since 2×4909718891919² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4909718891929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696894 + ... + 3210155.

It is an arithmetic number, because the mean of its divisors is an integer number (420238390950).

Almost surely, 2^{4909718891919} is an apocalyptic number.

4909718891919 is a deficient number, since it is larger than the sum of its proper divisors (1814095363281).

4909718891919 is a wasteful number, since it uses less digits than its factorization.

4909718891919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918410.

The product of its (nonzero) digits is 105815808, while the sum is 75.

The spelling of 4909718891919 in words is "four trillion, nine hundred nine billion, seven hundred eighteen million, eight hundred ninety-one thousand, nine hundred nineteen".