5193494821 has 8 divisors (see below), whose sum is σ = 5366636288. Its totient is φ = 5025933900.

The previous prime is 5193494819. The next prime is 5193494843. The reversal of 5193494821 is 1284943915.

It is not a de Polignac number, because 5193494821 - 2¹ = 5193494819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5193494861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57375 + ... + 116956.

It is an arithmetic number, because the mean of its divisors is an integer number (670829536).

Almost surely, 2^5193494821 is an apocalyptic number.

It is an amenable number.

5193494821 is a deficient number, since it is larger than the sum of its proper divisors (173141467).

5193494821 is an frugal number, since it uses more digits than its factorization.

5193494821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174424 (or 174362 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 5193494821 is about 72065.9060929647. The cubic root of 5193494821 is about 1731.7554681336.

The spelling of 5193494821 in words is "five billion, one hundred ninety-three million, four hundred ninety-four thousand, eight hundred twenty-one".