5418930811691 has 4 divisors (see below), whose sum is σ = 5419088194800. Its totient is φ = 5418773428584.

The previous prime is 5418930811673. The next prime is 5418930811753. The reversal of 5418930811691 is 1961180398145.

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 5418930811691 - 2⁴² = 1020884300587 is a prime.

It is a super-2 number, since 2×5418930811691² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5418930811601) 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, 78639896 + ... + 78708773.

It is an arithmetic number, because the mean of its divisors is an integer number (1354772048700).

Almost surely, 2^{5418930811691} is an apocalyptic number.

5418930811691 is a deficient number, since it is larger than the sum of its proper divisors (157383109).

5418930811691 is a wasteful number, since it uses less digits than its factorization.

5418930811691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157383108.

The product of its (nonzero) digits is 1866240, while the sum is 56.

The spelling of 5418930811691 in words is "five trillion, four hundred eighteen billion, nine hundred thirty million, eight hundred eleven thousand, six hundred ninety-one".