64537077486338 has 8 divisors (see below), whose sum is σ = 97150120202700. Its totient is φ = 32153704085440.

The previous prime is 64537077486239. The next prime is 64537077486389. The reversal of 64537077486338 is 83368477073546.

It can be written as a sum of positive squares in 2 ways, for example, as 55936682520889 + 8600394965449 = 7479083^2 + 2932643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57417328163 + ... + 57417329286.

Almost surely, 2^{64537077486338} is an apocalyptic number.

64537077486338 is a deficient number, since it is larger than the sum of its proper divisors (32613042716362).

64537077486338 is a wasteful number, since it uses less digits than its factorization.

64537077486338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114834657732.

The product of its (nonzero) digits is 1706987520, while the sum is 71.

The spelling of 64537077486338 in words is "sixty-four trillion, five hundred thirty-seven billion, seventy-seven million, four hundred eighty-six thousand, three hundred thirty-eight".