499218851 has 2 divisors, whose sum is σ = 499218852. Its totient is φ = 499218850.

The previous prime is 499218827. The next prime is 499218857. The reversal of 499218851 is 158812994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499218851 - 2¹⁸ = 498956707 is a prime.

It is a super-2 number, since 2×499218851² = 498438922387520402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 499218796 and 499218805.

It is not a weakly prime, because it can be changed into another prime (499218857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249609425 + 249609426.

It is an arithmetic number, because the mean of its divisors is an integer number (249609426).

Almost surely, 2^499218851 is an apocalyptic number.

499218851 is a deficient number, since it is larger than the sum of its proper divisors (1).

499218851 is an equidigital number, since it uses as much as digits as its factorization.

499218851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 47.

The square root of 499218851 is about 22343.2059248444. The cubic root of 499218851 is about 793.2869782996.

The spelling of 499218851 in words is "four hundred ninety-nine million, two hundred eighteen thousand, eight hundred fifty-one".