4019007701844 has 18 divisors (see below), whose sum is σ = 10159158357530. Its totient is φ = 1339669233936.

The previous prime is 4019007701791. The next prime is 4019007701857. The reversal of 4019007701844 is 4481077009104.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2728938802500 + 1290068899344 = 1651950^2 + 1135812^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 4019007701844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55819551379 + ... + 55819551450.

Almost surely, 2^{4019007701844} is an apocalyptic number.

It is an amenable number.

4019007701844 is an abundant number, since it is smaller than the sum of its proper divisors (6140150655686).

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

4019007701844 is a wasteful number, since it uses less digits than its factorization.

4019007701844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111639102839 (or 111639102834 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 4019007701844 in words is "four trillion, nineteen billion, seven million, seven hundred one thousand, eight hundred forty-four".