30099821049 has 45 divisors (see below), whose sum is σ = 46300884861. Its totient is φ = 19486733760.

The previous prime is 30099821021. The next prime is 30099821069. The reversal of 30099821049 is 94012899003.

The square root of 30099821049 is 173493.

It is a perfect power (a square), and thus also a powerful number.

30099821049 is a `hidden beast` number, since 300 + 9 + 98 + 210 + 49 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1629333225 + 28470487824 = 40365^2 + 168732^2 .

It is not a de Polignac number, because 30099821049 - 2¹⁹ = 30099296761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30099820995 and 30099821013.

It is not an unprimeable number, because it can be changed into a prime (30099821069) 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 44 ways as a sum of consecutive naturals, for example, 57772909 + ... + 57773429.

Almost surely, 2^30099821049 is an apocalyptic number.

30099821049 is the 173493-rd square number.

30099821049 is the 86747-th centered octagonal number.

It is an amenable number.

30099821049 is a deficient number, since it is larger than the sum of its proper divisors (16201063812).

30099821049 is an frugal number, since it uses more digits than its factorization.

30099821049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 30099821049 in words is "thirty billion, ninety-nine million, eight hundred twenty-one thousand, forty-nine".