30677876321 has 4 divisors (see below), whose sum is σ = 30686563092. Its totient is φ = 30669189552.

The previous prime is 30677876291. The next prime is 30677876323. The reversal of 30677876321 is 12367877603.

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 20609760721 + 10068115600 = 143561^2 + 100340^2 .

It is a cyclic number.

It is not a de Polignac number, because 30677876321 - 2²⁶ = 30610767457 is a prime.

It is a super-2 number, since 2×30677876321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30677876321.

It is not an unprimeable number, because it can be changed into a prime (30677876323) 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 3 ways as a sum of consecutive naturals, for example, 4338086 + ... + 4345151.

It is an arithmetic number, because the mean of its divisors is an integer number (7671640773).

Almost surely, 2^30677876321 is an apocalyptic number.

It is an amenable number.

30677876321 is a deficient number, since it is larger than the sum of its proper divisors (8686771).

30677876321 is an equidigital number, since it uses as much as digits as its factorization.

30677876321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8686770.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 30677876321 in words is "thirty billion, six hundred seventy-seven million, eight hundred seventy-six thousand, three hundred twenty-one".