30975577909247 has 16 divisors (see below), whose sum is σ = 33684397845120. Its totient is φ = 28365297412608.

The previous prime is 30975577909231. The next prime is 30975577909261. The reversal of 30975577909247 is 74290977557903.

It is not a de Polignac number, because 30975577909247 - 2⁴ = 30975577909231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30975577909207) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 138619973 + ... + 138843249.

It is an arithmetic number, because the mean of its divisors is an integer number (2105274865320).

Almost surely, 2^{30975577909247} is an apocalyptic number.

30975577909247 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

30975577909247 is a deficient number, since it is larger than the sum of its proper divisors (2708819935873).

30975577909247 is a wasteful number, since it uses less digits than its factorization.

30975577909247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443890.

The product of its (nonzero) digits is 1050197400, while the sum is 74.

The spelling of 30975577909247 in words is "thirty trillion, nine hundred seventy-five billion, five hundred seventy-seven million, nine hundred nine thousand, two hundred forty-seven".