19454492478795 has 32 divisors (see below), whose sum is σ = 34463752231680. Its totient is φ = 9291697895040.

The previous prime is 19454492478767. The next prime is 19454492478803. The reversal of 19454492478795 is 59787429445491.

It is not a de Polignac number, because 19454492478795 - 2⁶ = 19454492478731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19454492478795.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 879884580 + ... + 879906689.

It is an arithmetic number, because the mean of its divisors is an integer number (1076992257240).

Almost surely, 2^{19454492478795} is an apocalyptic number.

19454492478795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19454492478795 is a deficient number, since it is larger than the sum of its proper divisors (15009259752885).

19454492478795 is a wasteful number, since it uses less digits than its factorization.

19454492478795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759791355.

The product of its digits is 3657830400, while the sum is 78.

It can be divided in two parts, 1945449 and 2478795, that added together give a palindrome (4424244).

The spelling of 19454492478795 in words is "nineteen trillion, four hundred fifty-four billion, four hundred ninety-two million, four hundred seventy-eight thousand, seven hundred ninety-five".