28191736403816 has 64 divisors (see below), whose sum is σ = 55000442880000. Its totient is φ = 13532238881280.

The previous prime is 28191736403783. The next prime is 28191736403833. The reversal of 28191736403816 is 61830463719182.

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, 312678710 + ... + 312768858.

It is an arithmetic number, because the mean of its divisors is an integer number (859381920000).

Almost surely, 2^{28191736403816} is an apocalyptic number.

It is an amenable number.

28191736403816 is a deficient number, since it is larger than the sum of its proper divisors (26808706476184).

28191736403816 is a wasteful number, since it uses less digits than its factorization.

28191736403816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100242 (or 100238 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 28191736403816 in words is "twenty-eight trillion, one hundred ninety-one billion, seven hundred thirty-six million, four hundred three thousand, eight hundred sixteen".