28744344797 has 8 divisors (see below), whose sum is σ = 33020892096. Its totient is φ = 24510350592.

The previous prime is 28744344767. The next prime is 28744344833. The reversal of 28744344797 is 79744344782.

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

It is not a de Polignac number, because 28744344797 - 2¹⁶ = 28744279261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28744344767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10636823 + ... + 10639524.

It is an arithmetic number, because the mean of its divisors is an integer number (4127611512).

Almost surely, 2^28744344797 is an apocalyptic number.

It is an amenable number.

28744344797 is a deficient number, since it is larger than the sum of its proper divisors (4276547299).

28744344797 is a wasteful number, since it uses less digits than its factorization.

28744344797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21276547.

The product of its digits is 37933056, while the sum is 59.

The spelling of 28744344797 in words is "twenty-eight billion, seven hundred forty-four million, three hundred forty-four thousand, seven hundred ninety-seven".