2209747219904 has 56 divisors (see below), whose sum is σ = 5173048823808. Its totient is φ = 916485016320.

The previous prime is 2209747219871. The next prime is 2209747219919. The reversal of 2209747219904 is 4099127479022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 2209747219904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79542104 + ... + 79569879.

Almost surely, 2^{2209747219904} is an apocalyptic number.

It is an amenable number.

2209747219904 is an abundant number, since it is smaller than the sum of its proper divisors (2963301603904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2209747219904 is a wasteful number, since it uses less digits than its factorization.

2209747219904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159112033 (or 159112023 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 2209747219904 in words is "two trillion, two hundred nine billion, seven hundred forty-seven million, two hundred nineteen thousand, nine hundred four".