28348415782 has 4 divisors (see below), whose sum is σ = 42522623676. Its totient is φ = 14174207890.

The previous prime is 28348415779. The next prime is 28348415789. The reversal of 28348415782 is 28751484382.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28348415789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7087103944 + ... + 7087103947.

It is an arithmetic number, because the mean of its divisors is an integer number (10630655919).

Almost surely, 2^28348415782 is an apocalyptic number.

28348415782 is a deficient number, since it is larger than the sum of its proper divisors (14174207894).

28348415782 is a wasteful number, since it uses less digits than its factorization.

28348415782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14174207893.

The product of its digits is 3440640, while the sum is 52.

The spelling of 28348415782 in words is "twenty-eight billion, three hundred forty-eight million, four hundred fifteen thousand, seven hundred eighty-two".