28984624290655 has 32 divisors (see below), whose sum is σ = 38490574809600. Its totient is φ = 20777780833920.

The previous prime is 28984624290649. The next prime is 28984624290659. The reversal of 28984624290655 is 55609242648982.

It is not a de Polignac number, because 28984624290655 - 2¹³ = 28984624282463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28984624290659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11203684 + ... + 13545913.

It is an arithmetic number, because the mean of its divisors is an integer number (1202830462800).

Almost surely, 2^{28984624290655} is an apocalyptic number.

28984624290655 is a deficient number, since it is larger than the sum of its proper divisors (9505950518945).

28984624290655 is a wasteful number, since it uses less digits than its factorization.

28984624290655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24749919.

The product of its (nonzero) digits is 597196800, while the sum is 70.

The spelling of 28984624290655 in words is "twenty-eight trillion, nine hundred eighty-four billion, six hundred twenty-four million, two hundred ninety thousand, six hundred fifty-five".