18590414442551 has 4 divisors (see below), whose sum is σ = 21246187934352. Its totient is φ = 15934640950752.

The previous prime is 18590414442527. The next prime is 18590414442583. The reversal of 18590414442551 is 15524441409581.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18590414442551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18590414442493 and 18590414442502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18590414412551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327886745890 + ... + 1327886745903.

It is an arithmetic number, because the mean of its divisors is an integer number (5311546983588).

Almost surely, 2^{18590414442551} is an apocalyptic number.

18590414442551 is a deficient number, since it is larger than the sum of its proper divisors (2655773491801).

18590414442551 is an equidigital number, since it uses as much as digits as its factorization.

18590414442551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655773491800.

The product of its (nonzero) digits is 4608000, while the sum is 53.

The spelling of 18590414442551 in words is "eighteen trillion, five hundred ninety billion, four hundred fourteen million, four hundred forty-two thousand, five hundred fifty-one".