28815236051 has 16 divisors (see below), whose sum is σ = 33048637440. Its totient is φ = 24611225760.

The previous prime is 28815236039. The next prime is 28815236083. The reversal of 28815236051 is 15063251882.

It is a cyclic number.

It is not a de Polignac number, because 28815236051 - 2¹⁰ = 28815235027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28815236651) 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, 2431721 + ... + 2443541.

It is an arithmetic number, because the mean of its divisors is an integer number (2065539840).

Almost surely, 2^28815236051 is an apocalyptic number.

28815236051 is a deficient number, since it is larger than the sum of its proper divisors (4233401389).

28815236051 is a wasteful number, since it uses less digits than its factorization.

28815236051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13034.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 28815236051 in words is "twenty-eight billion, eight hundred fifteen million, two hundred thirty-six thousand, fifty-one".