64724344342746 has 64 divisors (see below), whose sum is σ = 145528416464256. Its totient is φ = 19018213689600.

The previous prime is 64724344342681. The next prime is 64724344342747.

64724344342746 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64724344342746² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64724344342746.

It is not an unprimeable number, because it can be changed into a prime (64724344342747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44514265 + ... + 45945276.

It is an arithmetic number, because the mean of its divisors is an integer number (2273881507254).

Almost surely, 2^{64724344342746} is an apocalyptic number.

64724344342746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64724344342746 is an abundant number, since it is smaller than the sum of its proper divisors (80804072121510).

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

64724344342746 is a wasteful number, since it uses less digits than its factorization.

64724344342746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90459887.

The product of its digits is 260112384, while the sum is 60.

The spelling of 64724344342746 in words is "sixty-four trillion, seven hundred twenty-four billion, three hundred forty-four million, three hundred forty-two thousand, seven hundred forty-six".