30188724255 has 24 divisors (see below), whose sum is σ = 52485235920. Its totient is φ = 16052002560.

The previous prime is 30188724197. The next prime is 30188724317. The reversal of 30188724255 is 55242788103.

It is not a de Polignac number, because 30188724255 - 2¹⁶ = 30188658719 is a prime.

It is a super-2 number, since 2×30188724255² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 30188724255.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 998490 + ... + 1028279.

It is an arithmetic number, because the mean of its divisors is an integer number (2186884830).

Almost surely, 2^30188724255 is an apocalyptic number.

30188724255 is a deficient number, since it is larger than the sum of its proper divisors (22296511665).

30188724255 is a wasteful number, since it uses less digits than its factorization.

30188724255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027111 (or 2027108 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 30188724255 in words is "thirty billion, one hundred eighty-eight million, seven hundred twenty-four thousand, two hundred fifty-five".