28732476373 has 4 divisors (see below), whose sum is σ = 30422622060. Its totient is φ = 27042330688.

The previous prime is 28732476329. The next prime is 28732476379. The reversal of 28732476373 is 37367423782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26929794609 + 1802681764 = 164103^2 + 42458^2 .

It is a cyclic number.

It is not a de Polignac number, because 28732476373 - 2³³ = 20142541781 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 28732476373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28732476379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845072818 + ... + 845072851.

It is an arithmetic number, because the mean of its divisors is an integer number (7605655515).

Almost surely, 2^28732476373 is an apocalyptic number.

It is an amenable number.

28732476373 is a deficient number, since it is larger than the sum of its proper divisors (1690145687).

28732476373 is a wasteful number, since it uses less digits than its factorization.

28732476373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690145686.

The product of its digits is 7112448, while the sum is 52.

The spelling of 28732476373 in words is "twenty-eight billion, seven hundred thirty-two million, four hundred seventy-six thousand, three hundred seventy-three".