30299071892 has 12 divisors (see below), whose sum is σ = 53030300820. Its totient is φ = 15147557376.

The previous prime is 30299071871. The next prime is 30299071909. The reversal of 30299071892 is 29817099203.

It can be written as a sum of positive squares in 2 ways, for example, as 17159952016 + 13139119876 = 130996^2 + 114626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30299071892.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459917 + ... + 521652.

It is an arithmetic number, because the mean of its divisors is an integer number (4419191735).

Almost surely, 2^30299071892 is an apocalyptic number.

It is an amenable number.

30299071892 is a deficient number, since it is larger than the sum of its proper divisors (22731228928).

30299071892 is a wasteful number, since it uses less digits than its factorization.

30299071892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989290 (or 989288 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 30299071892 in words is "thirty billion, two hundred ninety-nine million, seventy-one thousand, eight hundred ninety-two".