28350477375 has 64 divisors (see below), whose sum is σ = 51581836800. Its totient is φ = 13714176000.

The previous prime is 28350477371. The next prime is 28350477383. The reversal of 28350477375 is 57377405382.

It is a Cunningham number, because it is equal to 168376²-1.

It is not a de Polignac number, because 28350477375 - 2² = 28350477371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28350477371) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1844472 + ... + 1859778.

It is an arithmetic number, because the mean of its divisors is an integer number (805966200).

Almost surely, 2^28350477375 is an apocalyptic number.

28350477375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28350477375 is a deficient number, since it is larger than the sum of its proper divisors (23231359425).

28350477375 is a wasteful number, since it uses less digits than its factorization.

28350477375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15785 (or 15775 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 51.

The spelling of 28350477375 in words is "twenty-eight billion, three hundred fifty million, four hundred seventy-seven thousand, three hundred seventy-five".