28038781486 has 8 divisors (see below), whose sum is σ = 43508454120. Its totient is φ = 13535963448.

The previous prime is 28038781483. The next prime is 28038781499. The reversal of 28038781486 is 68418783082.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28038781483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241713576 + ... + 241713691.

It is an arithmetic number, because the mean of its divisors is an integer number (5438556765).

Almost surely, 2^28038781486 is an apocalyptic number.

28038781486 is a deficient number, since it is larger than the sum of its proper divisors (15469672634).

28038781486 is a wasteful number, since it uses less digits than its factorization.

28038781486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483427298.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 28038781486 in words is "twenty-eight billion, thirty-eight million, seven hundred eighty-one thousand, four hundred eighty-six".