64414989188 has 12 divisors (see below), whose sum is σ = 122974070352. Its totient is φ = 29279540520.

The previous prime is 64414989139. The next prime is 64414989227. The reversal of 64414989188 is 88198941446.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 64414989188.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731988470 + ... + 731988557.

It is an arithmetic number, because the mean of its divisors is an integer number (10247839196).

Almost surely, 2^64414989188 is an apocalyptic number.

It is an amenable number.

64414989188 is a deficient number, since it is larger than the sum of its proper divisors (58559081164).

64414989188 is a wasteful number, since it uses less digits than its factorization.

64414989188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463977042 (or 1463977040 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 62.

It can be divided in two parts, 644149 and 89188, that added together give a palindrome (733337).

The spelling of 64414989188 in words is "sixty-four billion, four hundred fourteen million, nine hundred eighty-nine thousand, one hundred eighty-eight".