18035408564 has 6 divisors (see below), whose sum is σ = 31561964994. Its totient is φ = 9017704280.

The previous prime is 18035408561. The next prime is 18035408591. The reversal of 18035408564 is 46580453081.

It can be written as a sum of positive squares in only one way, i.e., 15598011664 + 2437396900 = 124892^2 + 49370^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18035408561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2254426067 + ... + 2254426074.

It is an arithmetic number, because the mean of its divisors is an integer number (5260327499).

Almost surely, 2^18035408564 is an apocalyptic number.

It is an amenable number.

18035408564 is a deficient number, since it is larger than the sum of its proper divisors (13526556430).

18035408564 is a wasteful number, since it uses less digits than its factorization.

18035408564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508852145 (or 4508852143 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 18035408564 in words is "eighteen billion, thirty-five million, four hundred eight thousand, five hundred sixty-four".