30825016819 has 2 divisors, whose sum is σ = 30825016820. Its totient is φ = 30825016818.

The previous prime is 30825016801. The next prime is 30825016841. The reversal of 30825016819 is 91861052803.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30825016819 - 2⁹ = 30825016307 is a prime.

It is a super-2 number, since 2×30825016819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30825016319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15412508409 + 15412508410.

It is an arithmetic number, because the mean of its divisors is an integer number (15412508410).

Almost surely, 2^30825016819 is an apocalyptic number.

30825016819 is a deficient number, since it is larger than the sum of its proper divisors (1).

30825016819 is an equidigital number, since it uses as much as digits as its factorization.

30825016819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 30825016819 in words is "thirty billion, eight hundred twenty-five million, sixteen thousand, eight hundred nineteen".