64651268468529 has 48 divisors (see below), whose sum is σ = 100006155849600. Its totient is φ = 40156316310528.

The previous prime is 64651268468513. The next prime is 64651268468537. The reversal of 64651268468529 is 92586486215646.

64651268468529 is a `hidden beast` number, since 6 + 4 + 6 + 5 + 12 + 6 + 84 + 6 + 8 + 529 = 666.

It is not a de Polignac number, because 64651268468529 - 2⁴ = 64651268468513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64651268468329) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22951552 + ... + 25613985.

It is an arithmetic number, because the mean of its divisors is an integer number (2083461580200).

Almost surely, 2^{64651268468529} is an apocalyptic number.

64651268468529 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

64651268468529 is a deficient number, since it is larger than the sum of its proper divisors (35354887381071).

64651268468529 is a wasteful number, since it uses less digits than its factorization.

64651268468529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48565734 (or 48565731 counting only the distinct ones).

The product of its digits is 1194393600, while the sum is 72.

The spelling of 64651268468529 in words is "sixty-four trillion, six hundred fifty-one billion, two hundred sixty-eight million, four hundred sixty-eight thousand, five hundred twenty-nine".