5166819390 has 32 divisors (see below), whose sum is σ = 12610546560. Its totient is φ = 1354465184.

The previous prime is 5166819373. The next prime is 5166819391. The reversal of 5166819390 is 939186615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166819391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1457784 + ... + 1461323.

It is an arithmetic number, because the mean of its divisors is an integer number (394079580).

Almost surely, 2^5166819390 is an apocalyptic number.

5166819390 is an abundant number, since it is smaller than the sum of its proper divisors (7443727170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5166819390 is a wasteful number, since it uses less digits than its factorization.

5166819390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919176.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 5166819390 is about 71880.5911912249. The cubic root of 5166819390 is about 1728.7854294719.

The spelling of 5166819390 in words is "five billion, one hundred sixty-six million, eight hundred nineteen thousand, three hundred ninety".