30208695188 has 12 divisors (see below), whose sum is σ = 60417390432. Its totient is φ = 12946583640.

The previous prime is 30208695161. The next prime is 30208695191. The reversal of 30208695188 is 88159680203.

30208695188 is an admirable number.

It is a super-2 number, since 2×30208695188² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539440958 + ... + 539441013.

It is an arithmetic number, because the mean of its divisors is an integer number (5034782536).

Almost surely, 2^30208695188 is an apocalyptic number.

It is an amenable number.

30208695188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30208695188 is a wasteful number, since it uses less digits than its factorization.

30208695188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078881982 (or 1078881980 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 30208695188 in words is "thirty billion, two hundred eight million, six hundred ninety-five thousand, one hundred eighty-eight".