30805144829 has 4 divisors (see below), whose sum is σ = 32144498976. Its totient is φ = 29465790684.

The previous prime is 30805144801. The next prime is 30805144837. The reversal of 30805144829 is 92844150803.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92844150803 = 41 ⋅2264491483.

It is a cyclic number.

It is not a de Polignac number, because 30805144829 - 2²⁴ = 30788367613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30805144829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30805144859) 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, 669677039 + ... + 669677084.

It is an arithmetic number, because the mean of its divisors is an integer number (8036124744).

Almost surely, 2^30805144829 is an apocalyptic number.

It is an amenable number.

30805144829 is a deficient number, since it is larger than the sum of its proper divisors (1339354147).

30805144829 is a wasteful number, since it uses less digits than its factorization.

30805144829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339354146.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 30805144829 in words is "thirty billion, eight hundred five million, one hundred forty-four thousand, eight hundred twenty-nine".