28118395820404 has 48 divisors (see below), whose sum is σ = 51390130821120. Its totient is φ = 13445371170560.

The previous prime is 28118395820351. The next prime is 28118395820461. The reversal of 28118395820404 is 40402859381182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2438937 + ... + 7885759.

It is an arithmetic number, because the mean of its divisors is an integer number (1070627725440).

Almost surely, 2^{28118395820404} is an apocalyptic number.

It is an amenable number.

28118395820404 is a deficient number, since it is larger than the sum of its proper divisors (23271735000716).

28118395820404 is a wasteful number, since it uses less digits than its factorization.

28118395820404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447280 (or 5447278 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 28118395820404 in words is "twenty-eight trillion, one hundred eighteen billion, three hundred ninety-five million, eight hundred twenty thousand, four hundred four".