30285731749 has 64 divisors (see below), whose sum is σ = 38939084800. Its totient is φ = 22920226560.

The previous prime is 30285731743. The next prime is 30285731843. The reversal of 30285731749 is 94713758203.

It is not a de Polignac number, because 30285731749 - 2⁵ = 30285731717 is a prime.

It is a super-3 number, since 3×30285731749³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30285731743) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 86778427 + ... + 86778775.

It is an arithmetic number, because the mean of its divisors is an integer number (608423200).

Almost surely, 2^30285731749 is an apocalyptic number.

It is an amenable number.

30285731749 is a deficient number, since it is larger than the sum of its proper divisors (8653353051).

30285731749 is a wasteful number, since it uses less digits than its factorization.

30285731749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 30285731749 in words is "thirty billion, two hundred eighty-five million, seven hundred thirty-one thousand, seven hundred forty-nine".