28773547837 has 16 divisors (see below), whose sum is σ = 30608202240. Its totient is φ = 26988113152.

The previous prime is 28773547823. The next prime is 28773547841. The reversal of 28773547837 is 73874537782.

It is not a de Polignac number, because 28773547837 - 2⁷ = 28773547709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28773547037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2589708 + ... + 2600794.

It is an arithmetic number, because the mean of its divisors is an integer number (1913012640).

Almost surely, 2^28773547837 is an apocalyptic number.

It is an amenable number.

28773547837 is a deficient number, since it is larger than the sum of its proper divisors (1834654403).

28773547837 is a wasteful number, since it uses less digits than its factorization.

28773547837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292.

The product of its digits is 55319040, while the sum is 61.

The spelling of 28773547837 in words is "twenty-eight billion, seven hundred seventy-three million, five hundred forty-seven thousand, eight hundred thirty-seven".