618479712 has 72 divisors (see below), whose sum is σ = 1823965416. Its totient is φ = 206157312.

The previous prime is 618479699. The next prime is 618479717. The reversal of 618479712 is 217974816.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618479717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31993 + ... + 47544.

It is an arithmetic number, because the mean of its divisors is an integer number (25332853).

Almost surely, 2^618479712 is an apocalyptic number.

It is an amenable number.

618479712 is an abundant number, since it is smaller than the sum of its proper divisors (1205485704).

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

618479712 is an equidigital number, since it uses as much as digits as its factorization.

618479712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79562 (or 79542 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 618479712 is about 24869.2523409933. The cubic root of 618479712 is about 852.0043641911.

The spelling of 618479712 in words is "six hundred eighteen million, four hundred seventy-nine thousand, seven hundred twelve".