18779016486 has 8 divisors (see below), whose sum is σ = 37558032984. Its totient is φ = 6259672160.

The previous prime is 18779016463. The next prime is 18779016499. The reversal of 18779016486 is 68461097781.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

18779016486 is an admirable number.

It is a Curzon number.

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, 1564918035 + ... + 1564918046.

It is an arithmetic number, because the mean of its divisors is an integer number (4694754123).

Almost surely, 2^18779016486 is an apocalyptic number.

18779016486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18779016486 is a wasteful number, since it uses less digits than its factorization.

18779016486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129836086.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 18779016486 in words is "eighteen billion, seven hundred seventy-nine million, sixteen thousand, four hundred eighty-six".