30045621443 has 4 divisors (see below), whose sum is σ = 31626969960. Its totient is φ = 28464272928.

The previous prime is 30045621409. The next prime is 30045621491. The reversal of 30045621443 is 34412654003.

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 30045621443 - 2¹⁴ = 30045605059 is a prime.

It is a super-2 number, since 2×30045621443² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30045621743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790674230 + ... + 790674267.

It is an arithmetic number, because the mean of its divisors is an integer number (7906742490).

Almost surely, 2^30045621443 is an apocalyptic number.

30045621443 is a deficient number, since it is larger than the sum of its proper divisors (1581348517).

30045621443 is a wasteful number, since it uses less digits than its factorization.

30045621443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581348516.

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 30045621443 in words is "thirty billion, forty-five million, six hundred twenty-one thousand, four hundred forty-three".