5209367990 has 8 divisors (see below), whose sum is σ = 9376862400. Its totient is φ = 2083747192.

The previous prime is 5209367971. The next prime is 5209368011. The reversal of 5209367990 is 997639025.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260468390 + ... + 260468409.

It is an arithmetic number, because the mean of its divisors is an integer number (1172107800).

Almost surely, 2^5209367990 is an apocalyptic number.

5209367990 is a deficient number, since it is larger than the sum of its proper divisors (4167494410).

5209367990 is a wasteful number, since it uses less digits than its factorization.

5209367990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520936806.

The product of its (nonzero) digits is 918540, while the sum is 50.

The square root of 5209367990 is about 72175.9516043952. The cubic root of 5209367990 is about 1733.5179608151.

The spelling of 5209367990 in words is "five billion, two hundred nine million, three hundred sixty-seven thousand, nine hundred ninety".