1780070099 has 2 divisors, whose sum is σ = 1780070100. Its totient is φ = 1780070098.

The previous prime is 1780070093. The next prime is 1780070101. The reversal of 1780070099 is 9900700871.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1780070099 - 2¹⁶ = 1780004563 is a prime.

Together with 1780070101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1780070093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 890035049 + 890035050.

It is an arithmetic number, because the mean of its divisors is an integer number (890035050).

Almost surely, 2^1780070099 is an apocalyptic number.

1780070099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1780070099 is an equidigital number, since it uses as much as digits as its factorization.

1780070099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 1780070099 is about 42190.8769641021. The cubic root of 1780070099 is about 1211.9341829345.

The spelling of 1780070099 in words is "one billion, seven hundred eighty million, seventy thousand, ninety-nine".