64538288484 has 24 divisors (see below), whose sum is σ = 151586624448. Its totient is φ = 21370293600.

The previous prime is 64538288483. The next prime is 64538288497. The reversal of 64538288484 is 48488283546.

It is not an unprimeable number, because it can be changed into a prime (64538288483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17806767 + ... + 17810390.

It is an arithmetic number, because the mean of its divisors is an integer number (6316109352).

Almost surely, 2^64538288484 is an apocalyptic number.

It is an amenable number.

64538288484 is an abundant number, since it is smaller than the sum of its proper divisors (87048335964).

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

64538288484 is a wasteful number, since it uses less digits than its factorization.

64538288484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35617315 (or 35617313 counting only the distinct ones).

The product of its digits is 47185920, while the sum is 60.

It can be divided in two parts, 645382 and 88484, that added together give a triangular number (733866 = T₁₂₁₁).

The spelling of 64538288484 in words is "sixty-four billion, five hundred thirty-eight million, two hundred eighty-eight thousand, four hundred eighty-four".