30539686549 has 4 divisors (see below), whose sum is σ = 31524837760. Its totient is φ = 29554535340.

The previous prime is 30539686547. The next prime is 30539686607. The reversal of 30539686549 is 94568693503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30539686549 - 2¹ = 30539686547 is a prime.

It is a super-2 number, since 2×30539686549² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30539686493 and 30539686502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30539686543) 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 3 ways as a sum of consecutive naturals, for example, 492575559 + ... + 492575620.

It is an arithmetic number, because the mean of its divisors is an integer number (7881209440).

Almost surely, 2^30539686549 is an apocalyptic number.

It is an amenable number.

30539686549 is a deficient number, since it is larger than the sum of its proper divisors (985151211).

30539686549 is an equidigital number, since it uses as much as digits as its factorization.

30539686549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985151210.

The product of its (nonzero) digits is 20995200, while the sum is 58.

The spelling of 30539686549 in words is "thirty billion, five hundred thirty-nine million, six hundred eighty-six thousand, five hundred forty-nine".