28669541712 has 120 divisors (see below), whose sum is σ = 90689508000. Its totient is φ = 7760164608.

The previous prime is 28669541701. The next prime is 28669541713. The reversal of 28669541712 is 21714596682.

It is a super-2 number, since 2×28669541712² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28669541713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276087 + ... + 365462.

It is an arithmetic number, because the mean of its divisors is an integer number (755745900).

Almost surely, 2^28669541712 is an apocalyptic number.

It is an amenable number.

28669541712 is an abundant number, since it is smaller than the sum of its proper divisors (62019966288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28669541712 is a wasteful number, since it uses less digits than its factorization.

28669541712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641593 (or 641580 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The spelling of 28669541712 in words is "twenty-eight billion, six hundred sixty-nine million, five hundred forty-one thousand, seven hundred twelve".