64548717348635 has 16 divisors (see below), whose sum is σ = 83420949759840. Its totient is φ = 47664376089600.

The previous prime is 64548717348613. The next prime is 64548717348659. The reversal of 64548717348635 is 53684371784546.

It is not a de Polignac number, because 64548717348635 - 2³² = 64544422381339 is a prime.

It is a super-2 number, since 2×64548717348635² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23358941 + ... + 25975710.

It is an arithmetic number, because the mean of its divisors is an integer number (5213809359990).

Almost surely, 2^{64548717348635} is an apocalyptic number.

64548717348635 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64548717348635 is a deficient number, since it is larger than the sum of its proper divisors (18872232411205).

64548717348635 is a wasteful number, since it uses less digits than its factorization.

64548717348635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49354798.

The product of its digits is 1625702400, while the sum is 71.

The spelling of 64548717348635 in words is "sixty-four trillion, five hundred forty-eight billion, seven hundred seventeen million, three hundred forty-eight thousand, six hundred thirty-five".