30660771853 has 4 divisors (see below), whose sum is σ = 30729059100. Its totient is φ = 30592484608.

The previous prime is 30660771811. The next prime is 30660771859. The reversal of 30660771853 is 35817706603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19405047204 + 11255724649 = 139302^2 + 106093^2 .

It is a cyclic number.

It is not a de Polignac number, because 30660771853 - 2⁹ = 30660771341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30660771859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34142950 + ... + 34143847.

It is an arithmetic number, because the mean of its divisors is an integer number (7682264775).

Almost surely, 2^30660771853 is an apocalyptic number.

It is an amenable number.

30660771853 is a deficient number, since it is larger than the sum of its proper divisors (68287247).

30660771853 is an equidigital number, since it uses as much as digits as its factorization.

30660771853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68287246.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 30660771853 in words is "thirty billion, six hundred sixty million, seven hundred seventy-one thousand, eight hundred fifty-three".