30748783327487 has 4 divisors (see below), whose sum is σ = 30749054262360. Its totient is φ = 30748512392616.

The previous prime is 30748783327421. The next prime is 30748783327513. The reversal of 30748783327487 is 78472338784703.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30748783327487 - 2¹⁰ = 30748783326463 is a prime.

It is a super-2 number, since 2×30748783327487² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30748783327487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30748783324487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135297128 + ... + 135524205.

It is an arithmetic number, because the mean of its divisors is an integer number (7687263565590).

Almost surely, 2^{30748783327487} is an apocalyptic number.

30748783327487 is a deficient number, since it is larger than the sum of its proper divisors (270934873).

30748783327487 is a wasteful number, since it uses less digits than its factorization.

30748783327487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270934872.

The product of its (nonzero) digits is 1062125568, while the sum is 71.

The spelling of 30748783327487 in words is "thirty trillion, seven hundred forty-eight billion, seven hundred eighty-three million, three hundred twenty-seven thousand, four hundred eighty-seven".