30660433427 has 10 divisors (see below), whose sum is σ = 33215411028. Its totient is φ = 28301912184.

The previous prime is 30660433381. The next prime is 30660433439. The reversal of 30660433427 is 72433406603.

It is a de Polignac number, because none of the positive numbers 2^k-30660433427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30660433927) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 508193 + ... + 565314.

Almost surely, 2^30660433427 is an apocalyptic number.

30660433427 is a deficient number, since it is larger than the sum of its proper divisors (2554977601).

30660433427 is an frugal number, since it uses more digits than its factorization.

30660433427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073559 (or 1073520 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 38.

The spelling of 30660433427 in words is "thirty billion, six hundred sixty million, four hundred thirty-three thousand, four hundred twenty-seven".