30447574729 has 24 divisors (see below), whose sum is σ = 36271424840. Its totient is φ = 25387464960.

The previous prime is 30447574681. The next prime is 30447574739. The reversal of 30447574729 is 92747574403.

It can be written as a sum of positive squares in 4 ways, for example, as 336649104 + 30110925625 = 18348^2 + 173525^2 .

It is not a de Polignac number, because 30447574729 - 2²³ = 30439186121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30447574739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185317 + ... + 308605.

Almost surely, 2^30447574729 is an apocalyptic number.

It is an amenable number.

30447574729 is a deficient number, since it is larger than the sum of its proper divisors (5823850111).

30447574729 is a wasteful number, since it uses less digits than its factorization.

30447574729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123481 (or 123470 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 30447574729 in words is "thirty billion, four hundred forty-seven million, five hundred seventy-four thousand, seven hundred twenty-nine".