28743275757 has 8 divisors (see below), whose sum is σ = 43799277376. Its totient is φ = 16424728992.

The previous prime is 28743275749. The next prime is 28743275777. The reversal of 28743275757 is 75757234782.

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

It is not a de Polignac number, because 28743275757 - 2³ = 28743275749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28743275697 and 28743275706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28743275747) 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, 684363688 + ... + 684363729.

It is an arithmetic number, because the mean of its divisors is an integer number (5474909672).

Almost surely, 2^28743275757 is an apocalyptic number.

It is an amenable number.

28743275757 is a deficient number, since it is larger than the sum of its proper divisors (15056001619).

28743275757 is a wasteful number, since it uses less digits than its factorization.

28743275757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368727427.

The product of its digits is 23049600, while the sum is 57.

The spelling of 28743275757 in words is "twenty-eight billion, seven hundred forty-three million, two hundred seventy-five thousand, seven hundred fifty-seven".