28252462555861 has 8 divisors (see below), whose sum is σ = 28973882995200. Its totient is φ = 27533968772352.

The previous prime is 28252462555789. The next prime is 28252462555897. The reversal of 28252462555861 is 16855526425282.

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

It is a cyclic number.

It is not a de Polignac number, because 28252462555861 - 2¹⁵ = 28252462523093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28252462555861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28252462555061) 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, 731644405 + ... + 731683018.

It is an arithmetic number, because the mean of its divisors is an integer number (3621735374400).

Almost surely, 2^{28252462555861} is an apocalyptic number.

It is an amenable number.

28252462555861 is a deficient number, since it is larger than the sum of its proper divisors (721420439339).

28252462555861 is a wasteful number, since it uses less digits than its factorization.

28252462555861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463327915.

The product of its digits is 92160000, while the sum is 61.

The spelling of 28252462555861 in words is "twenty-eight trillion, two hundred fifty-two billion, four hundred sixty-two million, five hundred fifty-five thousand, eight hundred sixty-one".