30045236819 has 4 divisors (see below), whose sum is σ = 32356408896. Its totient is φ = 27734064744.

The previous prime is 30045236783. The next prime is 30045236849. The reversal of 30045236819 is 91863254003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91863254003 = 82657 ⋅1111379.

It is a cyclic number.

It is not a de Polignac number, because 30045236819 - 2⁸ = 30045236563 is a prime.

It is a super-2 number, since 2×30045236819² (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 (30045236849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155586019 + ... + 1155586044.

It is an arithmetic number, because the mean of its divisors is an integer number (8089102224).

Almost surely, 2^30045236819 is an apocalyptic number.

30045236819 is a deficient number, since it is larger than the sum of its proper divisors (2311172077).

30045236819 is a wasteful number, since it uses less digits than its factorization.

30045236819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311172076.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 30045236819 in words is "thirty billion, forty-five million, two hundred thirty-six thousand, eight hundred nineteen".