30707455643 has 4 divisors (see below), whose sum is σ = 30717616608. Its totient is φ = 30697294680.

The previous prime is 30707455619. The next prime is 30707455651. The reversal of 30707455643 is 34655470703.

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 30707455643 - 2¹⁰ = 30707454619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30707455594 and 30707455603.

It is not an unprimeable number, because it can be changed into a prime (30707455543) 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 3 ways as a sum of consecutive naturals, for example, 5075948 + ... + 5081993.

It is an arithmetic number, because the mean of its divisors is an integer number (7679404152).

Almost surely, 2^30707455643 is an apocalyptic number.

30707455643 is a deficient number, since it is larger than the sum of its proper divisors (10160965).

30707455643 is a wasteful number, since it uses less digits than its factorization.

30707455643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10160964.

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 30707455643 in words is "thirty billion, seven hundred seven million, four hundred fifty-five thousand, six hundred forty-three".