1018425841689 has 8 divisors (see below), whose sum is σ = 1357907205600. Its totient is φ = 678947519456.

The previous prime is 1018425841649. The next prime is 1018425841709. The reversal of 1018425841689 is 9861485248101.

1018425841689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1018425841689 - 2⁷ = 1018425841561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1018425841619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190837 + ... + 1439885.

It is an arithmetic number, because the mean of its divisors is an integer number (169738400700).

Almost surely, 2^{1018425841689} is an apocalyptic number.

It is an amenable number.

1018425841689 is a deficient number, since it is larger than the sum of its proper divisors (339481363911).

1018425841689 is a wasteful number, since it uses less digits than its factorization.

1018425841689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520839.

The product of its (nonzero) digits is 4423680, while the sum is 57.

The spelling of 1018425841689 in words is "one trillion, eighteen billion, four hundred twenty-five million, eight hundred forty-one thousand, six hundred eighty-nine".