30704608557 has 12 divisors (see below), whose sum is σ = 50686972960. Its totient is φ = 17545490568.

The previous prime is 30704608541. The next prime is 30704608601. The reversal of 30704608557 is 75580640703.

30704608557 is a `hidden beast` number, since 30 + 7 + 0 + 4 + 60 + 8 + 557 = 666.

It is not a de Polignac number, because 30704608557 - 2⁴ = 30704608541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30704608537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243687307 + ... + 243687432.

Almost surely, 2^30704608557 is an apocalyptic number.

It is an amenable number.

30704608557 is a deficient number, since it is larger than the sum of its proper divisors (19982364403).

30704608557 is a wasteful number, since it uses less digits than its factorization.

30704608557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487374752 (or 487374749 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 30704608557 in words is "thirty billion, seven hundred four million, six hundred eight thousand, five hundred fifty-seven".