28077525286 has 4 divisors (see below), whose sum is σ = 42116287932. Its totient is φ = 14038762642.

The previous prime is 28077525197. The next prime is 28077525293. The reversal of 28077525286 is 68252577082.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7019381320 + ... + 7019381323.

It is an arithmetic number, because the mean of its divisors is an integer number (10529071983).

Almost surely, 2^28077525286 is an apocalyptic number.

28077525286 is a deficient number, since it is larger than the sum of its proper divisors (14038762646).

28077525286 is a wasteful number, since it uses less digits than its factorization.

28077525286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14038762645.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 28077525286 in words is "twenty-eight billion, seventy-seven million, five hundred twenty-five thousand, two hundred eighty-six".