64731542675236 has 12 divisors (see below), whose sum is σ = 114107062454028. Its totient is φ = 32129524831232.

The previous prime is 64731542675197. The next prime is 64731542675251. The reversal of 64731542675236 is 63257624513746.

It can be written as a sum of positive squares in 2 ways, for example, as 20286520451136 + 44445022224100 = 4504056^2 + 6666710^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59061625981 + ... + 59061627076.

It is an arithmetic number, because the mean of its divisors is an integer number (9508921871169).

Almost surely, 2^{64731542675236} is an apocalyptic number.

It is an amenable number.

64731542675236 is a deficient number, since it is larger than the sum of its proper divisors (49375519778792).

64731542675236 is a wasteful number, since it uses less digits than its factorization.

64731542675236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118123253198 (or 118123253196 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 61.

The spelling of 64731542675236 in words is "sixty-four trillion, seven hundred thirty-one billion, five hundred forty-two million, six hundred seventy-five thousand, two hundred thirty-six".