1918468560554 has 16 divisors (see below), whose sum is σ = 3541788112128. Its totient is φ = 758954595312.

The previous prime is 1918468560539. The next prime is 1918468560607. The reversal of 1918468560554 is 4550658648191.

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, 5270517842 + ... + 5270518205.

It is an arithmetic number, because the mean of its divisors is an integer number (221361757008).

Almost surely, 2^{1918468560554} is an apocalyptic number.

1918468560554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1918468560554 is a deficient number, since it is larger than the sum of its proper divisors (1623319551574).

1918468560554 is a wasteful number, since it uses less digits than its factorization.

1918468560554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10541036069.

The product of its (nonzero) digits is 41472000, while the sum is 62.

The spelling of 1918468560554 in words is "one trillion, nine hundred eighteen billion, four hundred sixty-eight million, five hundred sixty thousand, five hundred fifty-four".