2457820819 has 2 divisors, whose sum is σ = 2457820820. Its totient is φ = 2457820818.

The previous prime is 2457820811. The next prime is 2457820837. The reversal of 2457820819 is 9180287542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2457820819 - 2³ = 2457820811 is a prime.

It is a super-2 number, since 2×2457820819² = 12081766356619661522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2457820811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1228910409 + 1228910410.

It is an arithmetic number, because the mean of its divisors is an integer number (1228910410).

Almost surely, 2^2457820819 is an apocalyptic number.

2457820819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2457820819 is an equidigital number, since it uses as much as digits as its factorization.

2457820819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 2457820819 is about 49576.4139384849. The cubic root of 2457820819 is about 1349.5326812319.

The spelling of 2457820819 in words is "two billion, four hundred fifty-seven million, eight hundred twenty thousand, eight hundred nineteen".