18860457443 has 8 divisors (see below), whose sum is σ = 19481333760. Its totient is φ = 18240360840.

The previous prime is 18860457433. The next prime is 18860457479. The reversal of 18860457443 is 34475406881.

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

It is a cyclic number.

It is not a de Polignac number, because 18860457443 - 2⁶ = 18860457379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18860457391 and 18860457400.

It is not an unprimeable number, because it can be changed into a prime (18860457403) 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 7 ways as a sum of consecutive naturals, for example, 145553 + ... + 242706.

It is an arithmetic number, because the mean of its divisors is an integer number (2435166720).

Almost surely, 2^18860457443 is an apocalyptic number.

18860457443 is a deficient number, since it is larger than the sum of its proper divisors (620876317).

18860457443 is a wasteful number, since it uses less digits than its factorization.

18860457443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389857.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 18860457443 in words is "eighteen billion, eight hundred sixty million, four hundred fifty-seven thousand, four hundred forty-three".