28331877345 has 8 divisors (see below), whose sum is σ = 45331003776. Its totient is φ = 15110334576.

The previous prime is 28331877317. The next prime is 28331877373. The reversal of 28331877345 is 54377813382.

It is an interprime number because it is at equal distance from previous prime (28331877317) and next prime (28331877373).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28331877345 - 2¹² = 28331873249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944395897 + ... + 944395926.

It is an arithmetic number, because the mean of its divisors is an integer number (5666375472).

Almost surely, 2^28331877345 is an apocalyptic number.

It is an amenable number.

28331877345 is a deficient number, since it is larger than the sum of its proper divisors (16999126431).

28331877345 is a wasteful number, since it uses less digits than its factorization.

28331877345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888791831.

The product of its digits is 3386880, while the sum is 51.

The spelling of 28331877345 in words is "twenty-eight billion, three hundred thirty-one million, eight hundred seventy-seven thousand, three hundred forty-five".