28294736723 has 16 divisors (see below), whose sum is σ = 31598810880. Its totient is φ = 25118704800.

The previous prime is 28294736713. The next prime is 28294736737. The reversal of 28294736723 is 32763749282.

It is a cyclic number.

It is not a de Polignac number, because 28294736723 - 2⁴ = 28294736707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28294736713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58415 + ... + 244952.

It is an arithmetic number, because the mean of its divisors is an integer number (1974925680).

Almost surely, 2^28294736723 is an apocalyptic number.

28294736723 is a deficient number, since it is larger than the sum of its proper divisors (3304074157).

28294736723 is a wasteful number, since it uses less digits than its factorization.

28294736723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303578.

The product of its digits is 6096384, while the sum is 53.

The spelling of 28294736723 in words is "twenty-eight billion, two hundred ninety-four million, seven hundred thirty-six thousand, seven hundred twenty-three".