28078576537 has 8 divisors (see below), whose sum is σ = 30656358432. Its totient is φ = 25504992000.

The previous prime is 28078576451. The next prime is 28078576567. The reversal of 28078576537 is 73567587082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28078576537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28078576567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035339 + ... + 1062112.

It is an arithmetic number, because the mean of its divisors is an integer number (3832044804).

Almost surely, 2^28078576537 is an apocalyptic number.

It is an amenable number.

28078576537 is a deficient number, since it is larger than the sum of its proper divisors (2577781895).

28078576537 is a wasteful number, since it uses less digits than its factorization.

28078576537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098679.

The product of its (nonzero) digits is 19756800, while the sum is 58.

The spelling of 28078576537 in words is "twenty-eight billion, seventy-eight million, five hundred seventy-six thousand, five hundred thirty-seven".