30687004905 has 16 divisors (see below), whose sum is σ = 49107124800. Its totient is φ = 16363763648.

The previous prime is 30687004891. The next prime is 30687004913. The reversal of 30687004905 is 50940078603.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30687004905 - 2⁴ = 30687004889 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66930 + ... + 256619.

It is an arithmetic number, because the mean of its divisors is an integer number (3069195300).

Almost surely, 2^30687004905 is an apocalyptic number.

It is an amenable number.

30687004905 is a deficient number, since it is larger than the sum of its proper divisors (18420119895).

30687004905 is a wasteful number, since it uses less digits than its factorization.

30687004905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329880.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 30687004905 in words is "thirty billion, six hundred eighty-seven million, four thousand, nine hundred five".