30687682041 has 9 divisors (see below), whose sum is σ = 44327410959. Its totient is φ = 20458104336.

The previous prime is 30687682033. The next prime is 30687682063. The reversal of 30687682041 is 14028678603.

The square root of 30687682041 is 175179.

It is a perfect power (a square), and thus also a powerful number.

30687682041 is a `hidden beast` number, since 306 + 87 + 68 + 204 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7124204025 + 23563478016 = 84405^2 + 153504^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 30687682041 - 2³ = 30687682033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30687682031) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 496341 + ... + 554733.

Almost surely, 2^30687682041 is an apocalyptic number.

30687682041 is the 175179-th square number.

30687682041 is the 87590-th centered octagonal number.

It is an amenable number.

30687682041 is a deficient number, since it is larger than the sum of its proper divisors (13639728918).

30687682041 is an frugal number, since it uses more digits than its factorization.

30687682041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116792 (or 58396 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 30687682041 in words is "thirty billion, six hundred eighty-seven million, six hundred eighty-two thousand, forty-one".