19470054435845 has 16 divisors (see below), whose sum is σ = 25174197898752. Its totient is φ = 14370516763200.

The previous prime is 19470054435841. The next prime is 19470054435877. The reversal of 19470054435845 is 54853445007491.

It is not a de Polignac number, because 19470054435845 - 2² = 19470054435841 is a prime.

It is a super-2 number, since 2×19470054435845² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19470054435841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76638767 + ... + 76892396.

It is an arithmetic number, because the mean of its divisors is an integer number (1573387368672).

Almost surely, 2^{19470054435845} is an apocalyptic number.

It is an amenable number.

19470054435845 is a deficient number, since it is larger than the sum of its proper divisors (5704143462907).

19470054435845 is a wasteful number, since it uses less digits than its factorization.

19470054435845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153533132.

The product of its (nonzero) digits is 48384000, while the sum is 59.

The spelling of 19470054435845 in words is "nineteen trillion, four hundred seventy billion, fifty-four million, four hundred thirty-five thousand, eight hundred forty-five".