30390447379 has 2 divisors, whose sum is σ = 30390447380. Its totient is φ = 30390447378.

The previous prime is 30390447337. The next prime is 30390447401. The reversal of 30390447379 is 97374409303.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30390447379 - 2⁷ = 30390447251 is a prime.

It is not a weakly prime, because it can be changed into another prime (30390447319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15195223689 + 15195223690.

It is an arithmetic number, because the mean of its divisors is an integer number (15195223690).

Almost surely, 2^30390447379 is an apocalyptic number.

30390447379 is a deficient number, since it is larger than the sum of its proper divisors (1).

30390447379 is an equidigital number, since it uses as much as digits as its factorization.

30390447379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 49.

The spelling of 30390447379 in words is "thirty billion, three hundred ninety million, four hundred forty-seven thousand, three hundred seventy-nine".