64229339752 has 32 divisors (see below), whose sum is σ = 127582144200. Its totient is φ = 30209449984.

The previous prime is 64229339731. The next prime is 64229339767. The reversal of 64229339752 is 25793392246.

It can be written as a sum of positive squares in 4 ways, for example, as 63138623076 + 1090716676 = 251274^2 + 33026^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64229339752.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131898 + ... + 381910.

Almost surely, 2^64229339752 is an apocalyptic number.

It is an amenable number.

64229339752 is a deficient number, since it is larger than the sum of its proper divisors (63352804448).

64229339752 is a wasteful number, since it uses less digits than its factorization.

64229339752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251925 (or 251921 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 52.

The spelling of 64229339752 in words is "sixty-four billion, two hundred twenty-nine million, three hundred thirty-nine thousand, seven hundred fifty-two".