64418264428 has 24 divisors (see below), whose sum is σ = 128968453152. Its totient is φ = 27579558144.

The previous prime is 64418264363. The next prime is 64418264431. The reversal of 64418264428 is 82446281446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150051 + ... + 1204762.

It is an arithmetic number, because the mean of its divisors is an integer number (5373685548).

Almost surely, 2^64418264428 is an apocalyptic number.

It is an amenable number.

64418264428 is an abundant number, since it is smaller than the sum of its proper divisors (64550188724).

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

64418264428 is a wasteful number, since it uses less digits than its factorization.

64418264428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355801 (or 2355799 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 49.

The spelling of 64418264428 in words is "sixty-four billion, four hundred eighteen million, two hundred sixty-four thousand, four hundred twenty-eight".