28019143514642 has 32 divisors (see below), whose sum is σ = 52498866908160. Its totient is φ = 10937263933440.

The previous prime is 28019143514623. The next prime is 28019143514707. The reversal of 28019143514642 is 24641534191082.

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 15 ways as a sum of consecutive naturals, for example, 1898823167 + ... + 1898837922.

It is an arithmetic number, because the mean of its divisors is an integer number (1640589590880).

Almost surely, 2^{28019143514642} is an apocalyptic number.

28019143514642 is a deficient number, since it is larger than the sum of its proper divisors (24479723393518).

28019143514642 is a wasteful number, since it uses less digits than its factorization.

28019143514642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797661146.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 28019143514642 in words is "twenty-eight trillion, nineteen billion, one hundred forty-three million, five hundred fourteen thousand, six hundred forty-two".