28531425610 has 8 divisors (see below), whose sum is σ = 51356566116. Its totient is φ = 11412570240.

The previous prime is 28531425553. The next prime is 28531425613. The reversal of 28531425610 is 1652413582.

It can be written as a sum of positive squares in 2 ways, for example, as 27715923361 + 815502249 = 166481^2 + 28557^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 28531425610.

It is not an unprimeable number, because it can be changed into a prime (28531425613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426571271 + ... + 1426571290.

Almost surely, 2^28531425610 is an apocalyptic number.

28531425610 is a deficient number, since it is larger than the sum of its proper divisors (22825140506).

28531425610 is a wasteful number, since it uses less digits than its factorization.

28531425610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853142568.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 28531425610 in words is "twenty-eight billion, five hundred thirty-one million, four hundred twenty-five thousand, six hundred ten".