30187161208 has 8 divisors (see below), whose sum is σ = 56600927280. Its totient is φ = 15093580600.

The previous prime is 30187161181. The next prime is 30187161209. The reversal of 30187161208 is 80216178103.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×30187161208² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30187161209) 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 as a sum of consecutive naturals, namely, 1886697568 + ... + 1886697583.

It is an arithmetic number, because the mean of its divisors is an integer number (7075115910).

Almost surely, 2^30187161208 is an apocalyptic number.

It is an amenable number.

30187161208 is a deficient number, since it is larger than the sum of its proper divisors (26413766072).

30187161208 is a wasteful number, since it uses less digits than its factorization.

30187161208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773395157 (or 3773395153 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 30187161208 in words is "thirty billion, one hundred eighty-seven million, one hundred sixty-one thousand, two hundred eight".