30188455436 has 6 divisors (see below), whose sum is σ = 52829797020. Its totient is φ = 15094227716.

The previous prime is 30188455421. The next prime is 30188455439. The reversal of 30188455436 is 63455488103.

It is a super-2 number, since 2×30188455436² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30188455439) 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, 3773556926 + ... + 3773556933.

It is an arithmetic number, because the mean of its divisors is an integer number (8804966170).

Almost surely, 2^30188455436 is an apocalyptic number.

It is an amenable number.

30188455436 is a deficient number, since it is larger than the sum of its proper divisors (22641341584).

30188455436 is a wasteful number, since it uses less digits than its factorization.

30188455436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7547113863 (or 7547113861 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 30188455436 in words is "thirty billion, one hundred eighty-eight million, four hundred fifty-five thousand, four hundred thirty-six".