28057758711 has 8 divisors (see below), whose sum is σ = 38421435504. Its totient is φ = 18199627200.

The previous prime is 28057758697. The next prime is 28057758733. The reversal of 28057758711 is 11785775082.

It is a happy number.

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

It is not a de Polignac number, because 28057758711 - 2⁹ = 28057758199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28057758011) 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, 126386190 + ... + 126386411.

It is an arithmetic number, because the mean of its divisors is an integer number (4802679438).

Almost surely, 2^28057758711 is an apocalyptic number.

28057758711 is a deficient number, since it is larger than the sum of its proper divisors (10363676793).

28057758711 is a wasteful number, since it uses less digits than its factorization.

28057758711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252772641.

The product of its (nonzero) digits is 1097600, while the sum is 51.

The spelling of 28057758711 in words is "twenty-eight billion, fifty-seven million, seven hundred fifty-eight thousand, seven hundred eleven".