5431694849 has 8 divisors (see below), whose sum is σ = 6286229760. Its totient is φ = 4596804576.

The previous prime is 5431694843. The next prime is 5431694897. The reversal of 5431694849 is 9484961345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5431694849 - 2⁴ = 5431694833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5431694849.

It is not an unprimeable number, because it can be changed into a prime (5431694843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4910564 + ... + 4911669.

It is an arithmetic number, because the mean of its divisors is an integer number (785778720).

Almost surely, 2^5431694849 is an apocalyptic number.

It is an amenable number.

5431694849 is a deficient number, since it is larger than the sum of its proper divisors (854534911).

5431694849 is an equidigital number, since it uses as much as digits as its factorization.

5431694849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9822319.

The product of its digits is 3732480, while the sum is 53.

The square root of 5431694849 is about 73700.0328968719. The cubic root of 5431694849 is about 1757.8364048174.

The spelling of 5431694849 in words is "five billion, four hundred thirty-one million, six hundred ninety-four thousand, eight hundred forty-nine".