28746383563 has 4 divisors (see below), whose sum is σ = 30437347320. Its totient is φ = 27055419808.

The previous prime is 28746383557. The next prime is 28746383573. The reversal of 28746383563 is 36538364782.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28746383563 is a prime.

It is a super-2 number, since 2×28746383563² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28746383573) 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, 845481853 + ... + 845481886.

It is an arithmetic number, because the mean of its divisors is an integer number (7609336830).

Almost surely, 2^28746383563 is an apocalyptic number.

28746383563 is a deficient number, since it is larger than the sum of its proper divisors (1690963757).

28746383563 is a wasteful number, since it uses less digits than its factorization.

28746383563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690963756.

The product of its digits is 17418240, while the sum is 55.

The spelling of 28746383563 in words is "twenty-eight billion, seven hundred forty-six million, three hundred eighty-three thousand, five hundred sixty-three".