18776098428 has 36 divisors (see below), whose sum is σ = 44372661480. Its totient is φ = 6179450784.

The previous prime is 18776098427. The next prime is 18776098457. The reversal of 18776098428 is 82489067781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18776098421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50463 + ... + 200246.

It is an arithmetic number, because the mean of its divisors is an integer number (1232573930).

Almost surely, 2^18776098428 is an apocalyptic number.

It is an amenable number.

18776098428 is an abundant number, since it is smaller than the sum of its proper divisors (25596563052).

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

18776098428 is a wasteful number, since it uses less digits than its factorization.

18776098428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250874 (or 250793 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 18776098428 in words is "eighteen billion, seven hundred seventy-six million, ninety-eight thousand, four hundred twenty-eight".