19791085078235 has 8 divisors (see below), whose sum is σ = 23749326078336. Its totient is φ = 15832852072960.

The previous prime is 19791085078223. The next prime is 19791085078241. The reversal of 19791085078235 is 53287058019791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-19791085078235 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7941947 + ... + 10131963.

It is an arithmetic number, because the mean of its divisors is an integer number (2968665759792).

Almost surely, 2^{19791085078235} is an apocalyptic number.

19791085078235 is a deficient number, since it is larger than the sum of its proper divisors (3958241000101).

19791085078235 is a wasteful number, since it uses less digits than its factorization.

19791085078235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997413.

The product of its (nonzero) digits is 38102400, while the sum is 65.

The spelling of 19791085078235 in words is "nineteen trillion, seven hundred ninety-one billion, eighty-five million, seventy-eight thousand, two hundred thirty-five".