4821890819 has 2 divisors, whose sum is σ = 4821890820. Its totient is φ = 4821890818.

The previous prime is 4821890807. The next prime is 4821890831. The reversal of 4821890819 is 9180981284.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (4821890807) and next prime (4821890831).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4821890819 is a prime.

It is a super-2 number, since 2×4821890819² = 46501262140712981522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4821890219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2410945409 + 2410945410.

It is an arithmetic number, because the mean of its divisors is an integer number (2410945410).

Almost surely, 2^4821890819 is an apocalyptic number.

4821890819 is a deficient number, since it is larger than the sum of its proper divisors (1).

4821890819 is an equidigital number, since it uses as much as digits as its factorization.

4821890819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 50.

The square root of 4821890819 is about 69439.8359661081. The cubic root of 4821890819 is about 1689.4258076428.

The spelling of 4821890819 in words is "four billion, eight hundred twenty-one million, eight hundred ninety thousand, eight hundred nineteen".