28772515502176 has 12 divisors (see below), whose sum is σ = 56645889894972. Its totient is φ = 14386257751072.

The previous prime is 28772515502153. The next prime is 28772515502177. The reversal of 28772515502176 is 67120551527782.

It is a self number, because there is not a number n which added to its sum of digits gives 28772515502176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28772515502177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449570554690 + ... + 449570554753.

It is an arithmetic number, because the mean of its divisors is an integer number (4720490824581).

Almost surely, 2^{28772515502176} is an apocalyptic number.

It is an amenable number.

28772515502176 is a deficient number, since it is larger than the sum of its proper divisors (27873374392796).

28772515502176 is an equidigital number, since it uses as much as digits as its factorization.

28772515502176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899141109453 (or 899141109445 counting only the distinct ones).

The product of its (nonzero) digits is 16464000, while the sum is 58.

The spelling of 28772515502176 in words is "twenty-eight trillion, seven hundred seventy-two billion, five hundred fifteen million, five hundred two thousand, one hundred seventy-six".