28445456650611 has 64 divisors (see below), whose sum is σ = 51040943170560. Its totient is φ = 13608676823040.

The previous prime is 28445456650591. The next prime is 28445456650651. The reversal of 28445456650611 is 11605665454482.

It is a happy number.

It is not a de Polignac number, because 28445456650611 - 2⁶ = 28445456650547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28445456650651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9637746 + ... + 12238343.

It is an arithmetic number, because the mean of its divisors is an integer number (797514737040).

Almost surely, 2^{28445456650611} is an apocalyptic number.

28445456650611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28445456650611 is a deficient number, since it is larger than the sum of its proper divisors (22595486519949).

28445456650611 is a wasteful number, since it uses less digits than its factorization.

28445456650611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21876556.

The product of its (nonzero) digits is 27648000, while the sum is 57.

The spelling of 28445456650611 in words is "twenty-eight trillion, four hundred forty-five billion, four hundred fifty-six million, six hundred fifty thousand, six hundred eleven".