28440714742 has 16 divisors (see below), whose sum is σ = 47797173072. Its totient is φ = 12578202720.

The previous prime is 28440714739. The next prime is 28440714761. The reversal of 28440714742 is 24741704482.

It is a super-2 number, since 2×28440714742² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17468913 + ... + 17470540.

It is an arithmetic number, because the mean of its divisors is an integer number (2987323317).

Almost surely, 2^28440714742 is an apocalyptic number.

28440714742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28440714742 is a deficient number, since it is larger than the sum of its proper divisors (19356458330).

28440714742 is a wasteful number, since it uses less digits than its factorization.

28440714742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34939503.

The product of its (nonzero) digits is 401408, while the sum is 43.

The spelling of 28440714742 in words is "twenty-eight billion, four hundred forty million, seven hundred fourteen thousand, seven hundred forty-two".