64338487748 has 12 divisors (see below), whose sum is σ = 112705291692. Its totient is φ = 32136975840.

The previous prime is 64338487663. The next prime is 64338487753. The reversal of 64338487748 is 84778483346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 58408255684 + 5930232064 = 241678^2 + 77008^2 .

It is a super-2 number, since 2×64338487748² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8062523 + ... + 8070498.

It is an arithmetic number, because the mean of its divisors is an integer number (9392107641).

Almost surely, 2^64338487748 is an apocalyptic number.

It is an amenable number.

64338487748 is a deficient number, since it is larger than the sum of its proper divisors (48366803944).

64338487748 is a wasteful number, since it uses less digits than its factorization.

64338487748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16134022 (or 16134020 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 62.

The spelling of 64338487748 in words is "sixty-four billion, three hundred thirty-eight million, four hundred eighty-seven thousand, seven hundred forty-eight".