18064787046 has 64 divisors (see below), whose sum is σ = 38049263616. Its totient is φ = 5710694400.

The previous prime is 18064787021. The next prime is 18064787047. The reversal of 18064787046 is 64078746081.

It is a happy number.

It is a super-2 number, since 2×18064787046² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18064787046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18064787047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1853466 + ... + 1863186.

It is an arithmetic number, because the mean of its divisors is an integer number (594519744).

Almost surely, 2^18064787046 is an apocalyptic number.

18064787046 is an abundant number, since it is smaller than the sum of its proper divisors (19984476570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18064787046 is a wasteful number, since it uses less digits than its factorization.

18064787046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9957.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 18064787046 in words is "eighteen billion, sixty-four million, seven hundred eighty-seven thousand, forty-six".