2103719777838 has 24 divisors (see below), whose sum is σ = 5209210878768. Its totient is φ = 601062793632.

The previous prime is 2103719777707. The next prime is 2103719777843. The reversal of 2103719777838 is 8387779173012.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8348094231 + ... + 8348094482.

It is an arithmetic number, because the mean of its divisors is an integer number (217050453282).

Almost surely, 2^{2103719777838} is an apocalyptic number.

2103719777838 is an abundant number, since it is smaller than the sum of its proper divisors (3105491100930).

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

2103719777838 is a wasteful number, since it uses less digits than its factorization.

2103719777838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16696188728 (or 16696188725 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 63.

The spelling of 2103719777838 in words is "two trillion, one hundred three billion, seven hundred nineteen million, seven hundred seventy-seven thousand, eight hundred thirty-eight".