30728126295 has 48 divisors (see below), whose sum is σ = 57432866400. Its totient is φ = 15147095040.

The previous prime is 30728126227. The next prime is 30728126309. The reversal of 30728126295 is 59262182703.

30728126295 is a `hidden beast` number, since 3 + 0 + 7 + 2 + 8 + 12 + 629 + 5 = 666.

It is not a de Polignac number, because 30728126295 - 2⁹ = 30728125783 is a prime.

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 30728126295.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403230 + ... + 473339.

It is an arithmetic number, because the mean of its divisors is an integer number (1196518050).

Almost surely, 2^30728126295 is an apocalyptic number.

30728126295 is a deficient number, since it is larger than the sum of its proper divisors (26704740105).

30728126295 is a wasteful number, since it uses less digits than its factorization.

30728126295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876640 (or 876637 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 30728126295 in words is "thirty billion, seven hundred twenty-eight million, one hundred twenty-six thousand, two hundred ninety-five".