28061073043 has 4 divisors (see below), whose sum is σ = 28076024880. Its totient is φ = 28046121208.

The previous prime is 28061073041. The next prime is 28061073059. The reversal of 28061073043 is 34037016082.

It is a happy number.

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 28061073043 - 2¹ = 28061073041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28061073041) 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, 7473103 + ... + 7476856.

It is an arithmetic number, because the mean of its divisors is an integer number (7019006220).

Almost surely, 2^28061073043 is an apocalyptic number.

28061073043 is a deficient number, since it is larger than the sum of its proper divisors (14951837).

28061073043 is a wasteful number, since it uses less digits than its factorization.

28061073043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14951836.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 28061073043 in words is "twenty-eight billion, sixty-one million, seventy-three thousand, forty-three".