30727635849 has 15 divisors (see below), whose sum is σ = 45904133847. Its totient is φ = 20484038808.

The previous prime is 30727635811. The next prime is 30727635863. The reversal of 30727635849 is 94853672703.

The square root of 30727635849 is 175293.

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

30727635849 is a `hidden beast` number, since 30 + 7 + 27 + 6 + 3 + 584 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21878847225 + 8848788624 = 147915^2 + 94068^2 .

It is not a de Polignac number, because 30727635849 - 2¹³ = 30727627657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30727635795 and 30727635804.

It is not an unprimeable number, because it can be changed into a prime (30727635349) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1567899 + ... + 1587375.

Almost surely, 2^30727635849 is an apocalyptic number.

30727635849 is the 175293-rd square number.

30727635849 is the 87647-th centered octagonal number.

It is an amenable number.

30727635849 is a deficient number, since it is larger than the sum of its proper divisors (15176497998).

30727635849 is an frugal number, since it uses more digits than its factorization.

30727635849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38966 (or 19480 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 30727635849 in words is "thirty billion, seven hundred twenty-seven million, six hundred thirty-five thousand, eight hundred forty-nine".