1873765428 has 12 divisors (see below), whose sum is σ = 4372119360. Its totient is φ = 624588472.

The previous prime is 1873765417. The next prime is 1873765441. The reversal of 1873765428 is 8245673781.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78073548 + ... + 78073571.

It is an arithmetic number, because the mean of its divisors is an integer number (364343280).

Almost surely, 2^1873765428 is an apocalyptic number.

It is an amenable number.

1873765428 is an abundant number, since it is smaller than the sum of its proper divisors (2498353932).

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

1873765428 is a wasteful number, since it uses less digits than its factorization.

1873765428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156147126 (or 156147124 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 1873765428 is about 43287.0122323082. The cubic root of 1873765428 is about 1232.8353362879.

The spelling of 1873765428 in words is "one billion, eight hundred seventy-three million, seven hundred sixty-five thousand, four hundred twenty-eight".