30000029768 has 16 divisors (see below), whose sum is σ = 56294123580. Its totient is φ = 14988263488.

The previous prime is 30000029767. The next prime is 30000029777. The reversal of 30000029768 is 86792000003.

It can be written as a sum of positive squares in 2 ways, for example, as 29301907684 + 698122084 = 171178^2 + 26422^2 .

It is a super-2 number, since 2×30000029768² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30000029767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458071 + ... + 1478502.

Almost surely, 2^30000029768 is an apocalyptic number.

It is an amenable number.

30000029768 is a deficient number, since it is larger than the sum of its proper divisors (26294093812).

30000029768 is a wasteful number, since it uses less digits than its factorization.

30000029768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937856 (or 2937852 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 30000029768 in words is "thirty billion, twenty-nine thousand, seven hundred sixty-eight".