28860285746 has 4 divisors (see below), whose sum is σ = 43290428622. Its totient is φ = 14430142872.

The previous prime is 28860285737. The next prime is 28860285749. The reversal of 28860285746 is 64758206882.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 26810460121 + 2049825625 = 163739^2 + 45275^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28860285691 and 28860285700.

It is not an unprimeable number, because it can be changed into a prime (28860285749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7215071435 + ... + 7215071438.

Almost surely, 2^28860285746 is an apocalyptic number.

28860285746 is a deficient number, since it is larger than the sum of its proper divisors (14430142876).

28860285746 is a wasteful number, since it uses less digits than its factorization.

28860285746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14430142875.

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 28860285746 in words is "twenty-eight billion, eight hundred sixty million, two hundred eighty-five thousand, seven hundred forty-six".