30805077753 has 12 divisors (see below), whose sum is σ = 45698824548. Its totient is φ = 19981671840.

The previous prime is 30805077731. The next prime is 30805077757. The reversal of 30805077753 is 35777050803.

It can be written as a sum of positive squares in 2 ways, for example, as 25380313344 + 5424764409 = 159312^2 + 73653^2 .

It is not a de Polignac number, because 30805077753 - 2¹⁷ = 30804946681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30805077699 and 30805077708.

It is not an unprimeable number, because it can be changed into a prime (30805077757) 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 in 11 ways as a sum of consecutive naturals, for example, 46253538 + ... + 46254203.

It is an arithmetic number, because the mean of its divisors is an integer number (3808235379).

Almost surely, 2^30805077753 is an apocalyptic number.

It is an amenable number.

30805077753 is a deficient number, since it is larger than the sum of its proper divisors (14893746795).

30805077753 is a wasteful number, since it uses less digits than its factorization.

30805077753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92507784 (or 92507781 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 30805077753 in words is "thirty billion, eight hundred five million, seventy-seven thousand, seven hundred fifty-three".