28078560654 has 8 divisors (see below), whose sum is σ = 56157121320. Its totient is φ = 9359520216.

The previous prime is 28078560649. The next prime is 28078560673. The reversal of 28078560654 is 45606587082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

28078560654 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28078560597 and 28078560606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339880049 + ... + 2339880060.

It is an arithmetic number, because the mean of its divisors is an integer number (7019640165).

Almost surely, 2^28078560654 is an apocalyptic number.

28078560654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28078560654 is a wasteful number, since it uses less digits than its factorization.

28078560654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679760114.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 28078560654 in words is "twenty-eight billion, seventy-eight million, five hundred sixty thousand, six hundred fifty-four".