28923832349 has 4 divisors (see below), whose sum is σ = 28942386720. Its totient is φ = 28905277980.

The previous prime is 28923832271. The next prime is 28923832361. The reversal of 28923832349 is 94323832982.

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.

It is a cyclic number.

It is not a de Polignac number, because 28923832349 - 2¹² = 28923828253 is a prime.

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 28923832349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28923832369) 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, 9274847 + ... + 9277964.

It is an arithmetic number, because the mean of its divisors is an integer number (7235596680).

Almost surely, 2^28923832349 is an apocalyptic number.

It is an amenable number.

28923832349 is a deficient number, since it is larger than the sum of its proper divisors (18554371).

28923832349 is a wasteful number, since it uses less digits than its factorization.

28923832349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18554370.

The product of its digits is 4478976, while the sum is 53.

The spelling of 28923832349 in words is "twenty-eight billion, nine hundred twenty-three million, eight hundred thirty-two thousand, three hundred forty-nine".