18628719060458 has 16 divisors (see below), whose sum is σ = 30103872046920. Its totient is φ = 8594634372096.

The previous prime is 18628719060439. The next prime is 18628719060463. The reversal of 18628719060458 is 85406091782681.

It can be written as a sum of positive squares in 4 ways, for example, as 14864548678849 + 3764170381609 = 3855457^2 + 1940147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18628719060394 and 18628719060403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134761403 + ... + 134899566.

Almost surely, 2^{18628719060458} is an apocalyptic number.

18628719060458 is a deficient number, since it is larger than the sum of its proper divisors (11475152986462).

18628719060458 is a wasteful number, since it uses less digits than its factorization.

18628719060458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269663641.

The product of its (nonzero) digits is 46448640, while the sum is 65.

The spelling of 18628719060458 in words is "eighteen trillion, six hundred twenty-eight billion, seven hundred nineteen million, sixty thousand, four hundred fifty-eight".