28483533861 has 32 divisors (see below), whose sum is σ = 38580584448. Its totient is φ = 18691015680.

The previous prime is 28483533853. The next prime is 28483533907. The reversal of 28483533861 is 16833538482.

It is a happy number.

It is not a de Polignac number, because 28483533861 - 2³ = 28483533853 is a prime.

It is a super-2 number, since 2×28483533861² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28483533961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26203260 + ... + 26204346.

It is an arithmetic number, because the mean of its divisors is an integer number (1205643264).

Almost surely, 2^28483533861 is an apocalyptic number.

It is an amenable number.

28483533861 is a deficient number, since it is larger than the sum of its proper divisors (10097050587).

28483533861 is a wasteful number, since it uses less digits than its factorization.

28483533861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721.

The product of its digits is 3317760, while the sum is 51.

The spelling of 28483533861 in words is "twenty-eight billion, four hundred eighty-three million, five hundred thirty-three thousand, eight hundred sixty-one".