28108134462 has 16 divisors (see below), whose sum is σ = 59175020160. Its totient is φ = 8876252952.

The previous prime is 28108134413. The next prime is 28108134463. The reversal of 28108134462 is 26443180182.

It is a self number, because there is not a number n which added to its sum of digits gives 28108134462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28108134463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123281178 + ... + 123281405.

It is an arithmetic number, because the mean of its divisors is an integer number (3698438760).

Almost surely, 2^28108134462 is an apocalyptic number.

28108134462 is an abundant number, since it is smaller than the sum of its proper divisors (31066885698).

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

28108134462 is a wasteful number, since it uses less digits than its factorization.

28108134462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246562607.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 28108134462 in words is "twenty-eight billion, one hundred eight million, one hundred thirty-four thousand, four hundred sixty-two".