1019999496823 has 2 divisors, whose sum is σ = 1019999496824. Its totient is φ = 1019999496822.

The previous prime is 1019999496821. The next prime is 1019999496839. The reversal of 1019999496823 is 3286949999101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1019999496823 - 2¹ = 1019999496821 is a prime.

Together with 1019999496821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1019999496821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509999748411 + 509999748412.

It is an arithmetic number, because the mean of its divisors is an integer number (509999748412).

Almost surely, 2^{1019999496823} is an apocalyptic number.

1019999496823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019999496823 is an equidigital number, since it uses as much as digits as its factorization.

1019999496823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68024448, while the sum is 70.

The spelling of 1019999496823 in words is "one trillion, nineteen billion, nine hundred ninety-nine million, four hundred ninety-six thousand, eight hundred twenty-three".