30661012529 has 32 divisors (see below), whose sum is σ = 36106076160. Its totient is φ = 25491477312.

The previous prime is 30661012469. The next prime is 30661012531. The reversal of 30661012529 is 92521016603.

It is a de Polignac number, because none of the positive numbers 2^k-30661012529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30661012559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36544292 + ... + 36545130.

It is an arithmetic number, because the mean of its divisors is an integer number (1128314880).

Almost surely, 2^30661012529 is an apocalyptic number.

It is an amenable number.

30661012529 is a deficient number, since it is larger than the sum of its proper divisors (5445063631).

30661012529 is a wasteful number, since it uses less digits than its factorization.

30661012529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 30661012529 in words is "thirty billion, six hundred sixty-one million, twelve thousand, five hundred twenty-nine".