5194950721 has 16 divisors (see below), whose sum is σ = 5531700160. Its totient is φ = 4864665600.

The previous prime is 5194950713. The next prime is 5194950727. The reversal of 5194950721 is 1270594915.

It is a cyclic number.

It is not a de Polignac number, because 5194950721 - 2³ = 5194950713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5194950727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2212270 + ... + 2214616.

It is an arithmetic number, because the mean of its divisors is an integer number (345731260).

Almost surely, 2^5194950721 is an apocalyptic number.

It is an amenable number.

5194950721 is a deficient number, since it is larger than the sum of its proper divisors (336749439).

5194950721 is a wasteful number, since it uses less digits than its factorization.

5194950721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 5194950721 is about 72076.0065555799. The cubic root of 5194950721 is about 1731.9172748626.

The spelling of 5194950721 in words is "five billion, one hundred ninety-four million, nine hundred fifty thousand, seven hundred twenty-one".