30019999969 has 2 divisors, whose sum is σ = 30019999970. Its totient is φ = 30019999968.

The previous prime is 30019999937. The next prime is 30019999973. The reversal of 30019999969 is 96999991003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28127314944 + 1892685025 = 167712^2 + 43505^2 .

It is a cyclic number.

It is not a de Polignac number, because 30019999969 - 2⁵ = 30019999937 is a prime.

It is a super-2 number, since 2×30019999969² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30019999969.

It is not a weakly prime, because it can be changed into another prime (30019999979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15009999984 + 15009999985.

It is an arithmetic number, because the mean of its divisors is an integer number (15009999985).

Almost surely, 2^30019999969 is an apocalyptic number.

It is an amenable number.

30019999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

30019999969 is an equidigital number, since it uses as much as digits as its factorization.

30019999969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9565938, while the sum is 64.

The spelling of 30019999969 in words is "thirty billion, nineteen million, nine hundred ninety-nine thousand, nine hundred sixty-nine".