28427239590 has 16 divisors (see below), whose sum is σ = 68225375088. Its totient is φ = 7580597216.

The previous prime is 28427239579. The next prime is 28427239619. The reversal of 28427239590 is 9593272482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473787297 + ... + 473787356.

It is an arithmetic number, because the mean of its divisors is an integer number (4264085943).

Almost surely, 2^28427239590 is an apocalyptic number.

28427239590 is an abundant number, since it is smaller than the sum of its proper divisors (39798135498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28427239590 is a wasteful number, since it uses less digits than its factorization.

28427239590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947574663.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 28427239590 in words is "twenty-eight billion, four hundred twenty-seven million, two hundred thirty-nine thousand, five hundred ninety".