30303642745 has 16 divisors (see below), whose sum is σ = 36705022992. Its totient is φ = 24016814080.

The previous prime is 30303642737. The next prime is 30303642751. The reversal of 30303642745 is 54724630303.

It can be written as a sum of positive squares in 8 ways, for example, as 10488012921 + 19815629824 = 102411^2 + 140768^2 .

It is not a de Polignac number, because 30303642745 - 2³ = 30303642737 is a prime.

It is a super-2 number, since 2×30303642745² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180729 + ... + 305401.

It is an arithmetic number, because the mean of its divisors is an integer number (2294063937).

Almost surely, 2^30303642745 is an apocalyptic number.

It is an amenable number.

30303642745 is a deficient number, since it is larger than the sum of its proper divisors (6401380247).

30303642745 is a wasteful number, since it uses less digits than its factorization.

30303642745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125132.

The product of its (nonzero) digits is 181440, while the sum is 37.

The spelling of 30303642745 in words is "thirty billion, three hundred three million, six hundred forty-two thousand, seven hundred forty-five".