28402859747 has 4 divisors (see below), whose sum is σ = 28404188736. Its totient is φ = 28401530760.

The previous prime is 28402859743. The next prime is 28402859761. The reversal of 28402859747 is 74795820482.

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

It is a cyclic number.

It is not a de Polignac number, because 28402859747 - 2² = 28402859743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28402859692 and 28402859701.

It is not an unprimeable number, because it can be changed into a prime (28402859743) 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, 631904 + ... + 675357.

It is an arithmetic number, because the mean of its divisors is an integer number (7101047184).

Almost surely, 2^28402859747 is an apocalyptic number.

28402859747 is a deficient number, since it is larger than the sum of its proper divisors (1328989).

28402859747 is a wasteful number, since it uses less digits than its factorization.

28402859747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328988.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 28402859747 in words is "twenty-eight billion, four hundred two million, eight hundred fifty-nine thousand, seven hundred forty-seven".