30315502979 has 2 divisors, whose sum is σ = 30315502980. Its totient is φ = 30315502978.

The previous prime is 30315502969. The next prime is 30315503081. The reversal of 30315502979 is 97920551303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30315502979 - 2⁴ = 30315502963 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (30315502949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15157751489 + 15157751490.

It is an arithmetic number, because the mean of its divisors is an integer number (15157751490).

Almost surely, 2^30315502979 is an apocalyptic number.

30315502979 is a deficient number, since it is larger than the sum of its proper divisors (1).

30315502979 is an equidigital number, since it uses as much as digits as its factorization.

30315502979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 255150, while the sum is 44.

The spelling of 30315502979 in words is "thirty billion, three hundred fifteen million, five hundred two thousand, nine hundred seventy-nine".